navigate to top page
  • Overview
  • Rooms & Plans
  • Reviews
  • Facilities
Ryokan

Izu Nagaoka Onsen Sanyo-so (Prince Hotels)

Izunokuni City, Shizuoka
Show on map

An exclusive ryokan from Prince Hotels providing guests with the chance to reacquaint themselves with long-forgotten Japanese elegance and traditional beauty.

Guest review score

Excellent
Reviews: 21
4.4

Access

Izu-Nagaoka Station
21 min walk
Nirayama Station
7 min drive
Takyo Station
9 min drive

Property facilities

  • Parking lot
  • Hot spring in the building
  • Open-air bath (hot spring)
  • Lounge
  • Japanese restaurant
  • Private dining

Explore our rooms and plans

Price (low to high)
7 room types
New building Japanese style room standard
No smoking
Max 4 adults / 3 children
Room facilities
  • Bath and toilet separated
  • Bath and toilet available
  • Over 430 square feet
  • Electronic kettle
  • TV
  • Safe deposit box
  • New building Japanese style deluxe room
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $845.20
    Taxes & fees incl.
    Plan details

    [Great value for 2 nights or more] Value rate cons [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining hall/Sakura course)> For those who want to enjoy sightseeing in Izu or a relaxing stay. This is a multi-night plan that can be used for various purposes, with room charges, dinner and breakfast included. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were discovered 1,300 years ago, and this place is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Spend quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Please enjoy the kaiseki cuisine "Sakura course" at your leisure in the dining hall. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of ingredients. [Information] *The price includes one person's room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you plan to arrive after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be located some distance away. *Please refrain from bringing in food and drinks. *A cancellation fee will be charged from 5 days prior to your stay. (Cancellation fee: 100% of the accommodation fee) If you cancel up to 6 days prior to your stay, there will be no cancellation fee. *The sales price of this plan varies depending on the reservation status, but the accommodation price will not change after purchase. How

    $845.20
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
  • 2025 Spring "Sakura" Course (scheduled for 2/16-4/15)
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $866.64
    Taxes & fees incl.
    Plan details

    <Early Bird 21> Book early and save with this acco [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining/Sakura course)> This is a great [early bird plan] if you make a reservation at least 21 days before your stay. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were first discovered 1,300 years ago, and this area is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Enjoy a quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Please enjoy the kaiseki cuisine "Sakura course" at your leisure in the dining area. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of ingredients. [Information] *The price includes one-night room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you will be arriving after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be far away. *Please refrain from bringing in food and drinks. [Japanese Garden] The garden, which changes beautifully with the seasons, is 3,000 tsubo (10,000 m2). In spring, there are cherry blossoms and azaleas, in summer, maple leaves and dodan azaleas in autumn, and winter cherry blossoms and plum blossoms in winter. Words cannot describe it all. In the center of the garden is a pond, and the sound of the water along with the surrounding greenery will soothe your soul. To get a panoramic

    $866.64
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
  • Annex of the main building
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $888.10
    Taxes & fees incl.
    Plan details

    A small but high-quality dinner and breakfast incl [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included, dining/Kiri course> This is an accommodation plan with dinner and breakfast that will satisfy the wishes of those who "can't eat a lot, but still want to eat delicious food." The dinner course is less voluminous than usual. ■Dinner■ Contents: Kaiseki cuisine "Kiri" course Location: Dining Enjoy luxurious cuisine in small portions. ■Breakfast■ Contents: Japanese set menu Location: Dining *Ingredients and menus may change depending on the availability of ingredients. [Information] - The price includes one person's room rate, dinner, breakfast, service charge, and consumption tax. - A hot spring tax (150 yen per adult per night) will be charged separately. - We do not accept children aged 6 to 12 years old sleeping in the same bed as guests. Please include them in the number of people staying at the paid accommodation when making a reservation. (Same price and meal as adults) - Please contact us if you plan to arrive after 5:00 PM. - Depending on the room you are staying in, the hot spring bath may be a little far away. - Please refrain from bringing in food and drinks. [Japanese Garden] The garden is 10,000 m2 in size and is beautiful as it changes with the seasons. Cherry blossoms and azaleas in spring, irises in summer, maples and azaleas in autumn, winter cherry blossoms and plums in winter, and more. Words cannot describe it all. In the center of the garden, there is a pond, and the sound of the water along with the surrounding greenery will soothe your soul. [Hot Spring Bath/Open-Air Bath] At Sanyo-so, you can enjoy the water of Izu Nagaoka Onsen in the large bath and open-air bath, which are separated for men and women. The large bath, which is fully glassed, is made of black granite, and the open-air bath is made of natural stone. Why not enjoy a blissful soak in the hot water while gazing at the tranquil garden? [Features] The spring quality is alkaline simple spring water. The water h

    $888.10
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
Room details

New building Japanese style room (standard) with hot spring indoor bath/Honma, next room [Japanese room] [Non-smoking]

No smoking
Max 4 adults / 3 children
Room facilities
  • Bath and toilet separated
  • Bath and toilet available
  • Over 430 square feet
  • Electronic kettle
  • TV
  • Safe deposit box
  • Refrigerator
Room location
  • New building
Amenities
  • Hairbrushes
  • Toothbrush sets
  • Body soap
  • Cotton swabs
  • Bath towels
  • Face towels
  • Slippers
  • Yukata
  • Hair dryers
  • Conditioner
  • Shower caps
  • Skincare goods
  • Razors
  • Soap
  • Makeup remover
  • Shampoo
Room image
No smoking
Max 5 adults / 4 children
Room facilities
  • Bath and toilet separated
  • Bath and toilet available
  • Over 430 square feet
  • Electronic kettle
  • TV
  • Safe deposit box
  • New building Japanese style deluxe room
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,170.46
    Taxes & fees incl.
    Plan details

    [Great value for 2 nights or more] Value rate cons [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining hall/Sakura course)> For those who want to enjoy sightseeing in Izu or a relaxing stay. This is a multi-night plan that can be used for various purposes, with room charges, dinner and breakfast included. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were discovered 1,300 years ago, and this place is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Spend quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Please enjoy the kaiseki cuisine "Sakura course" at your leisure in the dining hall. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of ingredients. [Information] *The price includes one person's room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you plan to arrive after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be located some distance away. *Please refrain from bringing in food and drinks. *A cancellation fee will be charged from 5 days prior to your stay. (Cancellation fee: 100% of the accommodation fee) If you cancel up to 6 days prior to your stay, there will be no cancellation fee. *The sales price of this plan varies depending on the reservation status, but the accommodation price will not change after purchase. How

    $1,170.46
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
  • New building entrance
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,170.46
    Taxes & fees incl.
    Plan details

    "Early Bird 60" - Book early and save with this ac [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining/Sakura course)> This is a very advantageous [Early Bird Plan] for those who decide on their travel plans at least 60 days in advance. For those who want to enjoy sightseeing in Izu or a relaxing stay. This plan includes room rate, dinner and breakfast and can be used for various purposes. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were discovered as far back as 1,300 years ago, and this area is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Spend quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Enjoy the "Sakura Course" kaiseki cuisine at your leisure in the dining area. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of supplies. [Information] *The price includes one-night room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you will be arriving after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be far away. [Recommended Viewpoint] There is a pond near the center of the garden, and it is a recommended spot where you can enjoy the soothing "sound of water" along with the surrounding greenery. In addition, the "Azumaya" on the hilltop is a great vantage point from which you can get a panoramic view of Sanyoso! [Large

    $1,170.46
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
  • 2025 Spring "Sakura" Course (scheduled for 2/16-4/15)
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,209.97
    Taxes & fees incl.
    Plan details

    <Early Bird 21> Book early and save with this acco [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining/Sakura course)> This is a great [early bird plan] if you make a reservation at least 21 days before your stay. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were first discovered 1,300 years ago, and this area is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Enjoy a quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Please enjoy the kaiseki cuisine "Sakura course" at your leisure in the dining area. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of ingredients. [Information] *The price includes one-night room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you will be arriving after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be far away. *Please refrain from bringing in food and drinks. [Japanese Garden] The garden, which changes beautifully with the seasons, is 3,000 tsubo (10,000 m2). In spring, there are cherry blossoms and azaleas, in summer, maple leaves and dodan azaleas in autumn, and winter cherry blossoms and plum blossoms in winter. Words cannot describe it all. In the center of the garden is a pond, and the sound of the water along with the surrounding greenery will soothe your soul. To get a panoramic

    $1,209.97
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
Room details

New Wing Japanese-Western style deluxe room/hot spring indoor bath/main room, bedroom, makeup room [Japanese-western room] [Non-smoking]

No smoking
Max 5 adults / 4 children
Room facilities
  • Bath and toilet separated
  • Bath and toilet available
  • Over 430 square feet
  • Electronic kettle
  • TV
  • Safe deposit box
  • Refrigerator
Room location
  • New building
Amenities
  • Hairbrushes
  • Toothbrush sets
  • Body soap
  • Cotton swabs
  • Bath towels
  • Face towels
  • Slippers
  • Yukata
  • Hair dryers
  • Conditioner
  • Shower caps
  • Skincare goods
  • Razors
  • Soap
  • Makeup remover
  • Shampoo
New building Japanese style deluxe
No smoking
Max 5 adults / 4 children
Room facilities
  • Bath and toilet separated
  • Bath and toilet available
  • Over 430 square feet
  • Electronic kettle
  • TV
  • Safe deposit box
  • New building Japanese style deluxe room
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,170.46
    Taxes & fees incl.
    Plan details

    [Great value for 2 nights or more] Value rate cons [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining hall/Sakura course)> For those who want to enjoy sightseeing in Izu or a relaxing stay. This is a multi-night plan that can be used for various purposes, with room charges, dinner and breakfast included. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were discovered 1,300 years ago, and this place is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Spend quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Please enjoy the kaiseki cuisine "Sakura course" at your leisure in the dining hall. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of ingredients. [Information] *The price includes one person's room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you plan to arrive after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be located some distance away. *Please refrain from bringing in food and drinks. *A cancellation fee will be charged from 5 days prior to your stay. (Cancellation fee: 100% of the accommodation fee) If you cancel up to 6 days prior to your stay, there will be no cancellation fee. *The sales price of this plan varies depending on the reservation status, but the accommodation price will not change after purchase. How

    $1,170.46
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
  • New building entrance
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,170.46
    Taxes & fees incl.
    Plan details

    "Early Bird 60" - Book early and save with this ac [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining/Sakura course)> This is a very advantageous [Early Bird Plan] for those who decide on their travel plans at least 60 days in advance. For those who want to enjoy sightseeing in Izu or a relaxing stay. This plan includes room rate, dinner and breakfast and can be used for various purposes. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were discovered as far back as 1,300 years ago, and this area is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Spend quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Enjoy the "Sakura Course" kaiseki cuisine at your leisure in the dining area. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of supplies. [Information] *The price includes one-night room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you will be arriving after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be far away. [Recommended Viewpoint] There is a pond near the center of the garden, and it is a recommended spot where you can enjoy the soothing "sound of water" along with the surrounding greenery. In addition, the "Azumaya" on the hilltop is a great vantage point from which you can get a panoramic view of Sanyoso! [Large

    $1,170.46
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
  • 2025 Spring "Sakura" Course (scheduled for 2/16-4/15)
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,209.97
    Taxes & fees incl.
    Plan details

    <Early Bird 21> Book early and save with this acco [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining/Sakura course)> This is a great [early bird plan] if you make a reservation at least 21 days before your stay. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were first discovered 1,300 years ago, and this area is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Enjoy a quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Please enjoy the kaiseki cuisine "Sakura course" at your leisure in the dining area. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of ingredients. [Information] *The price includes one-night room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you will be arriving after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be far away. *Please refrain from bringing in food and drinks. [Japanese Garden] The garden, which changes beautifully with the seasons, is 3,000 tsubo (10,000 m2). In spring, there are cherry blossoms and azaleas, in summer, maple leaves and dodan azaleas in autumn, and winter cherry blossoms and plum blossoms in winter. Words cannot describe it all. In the center of the garden is a pond, and the sound of the water along with the surrounding greenery will soothe your soul. To get a panoramic

    $1,209.97
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
Room details

New building Japanese style room (deluxe) with hot spring indoor bath / main room, next room, makeup room [Japanese room] [Non-smoking]

No smoking
Max 5 adults / 4 children
Room facilities
  • Bath and toilet separated
  • Bath and toilet available
  • Over 430 square feet
  • Electronic kettle
  • TV
  • Safe deposit box
  • Refrigerator
Room location
  • New building
Amenities
  • Hairbrushes
  • Toothbrush sets
  • Body soap
  • Cotton swabs
  • Bath towels
  • Face towels
  • Slippers
  • Yukata
  • Hair dryers
  • Conditioner
  • Shower caps
  • Skincare goods
  • Razors
  • Soap
  • Makeup remover
  • Shampoo
Separated from the main building
No smoking
Max 5 adults / 4 children
Room facilities
  • Bath and toilet separated
  • Bath and toilet available
  • Over 430 square feet
  • Electronic kettle
  • TV
  • Safe deposit box
  • New building Japanese style deluxe room
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,170.46
    Taxes & fees incl.
    Plan details

    [Great value for 2 nights or more] Value rate cons [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining hall/Sakura course)> For those who want to enjoy sightseeing in Izu or a relaxing stay. This is a multi-night plan that can be used for various purposes, with room charges, dinner and breakfast included. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were discovered 1,300 years ago, and this place is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Spend quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Please enjoy the kaiseki cuisine "Sakura course" at your leisure in the dining hall. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of ingredients. [Information] *The price includes one person's room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you plan to arrive after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be located some distance away. *Please refrain from bringing in food and drinks. *A cancellation fee will be charged from 5 days prior to your stay. (Cancellation fee: 100% of the accommodation fee) If you cancel up to 6 days prior to your stay, there will be no cancellation fee. *The sales price of this plan varies depending on the reservation status, but the accommodation price will not change after purchase. How

    $1,170.46
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
  • New building entrance
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,170.46
    Taxes & fees incl.
    Plan details

    "Early Bird 60" - Book early and save with this ac [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining/Sakura course)> This is a very advantageous [Early Bird Plan] for those who decide on their travel plans at least 60 days in advance. For those who want to enjoy sightseeing in Izu or a relaxing stay. This plan includes room rate, dinner and breakfast and can be used for various purposes. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were discovered as far back as 1,300 years ago, and this area is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Spend quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Enjoy the "Sakura Course" kaiseki cuisine at your leisure in the dining area. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of supplies. [Information] *The price includes one-night room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you will be arriving after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be far away. [Recommended Viewpoint] There is a pond near the center of the garden, and it is a recommended spot where you can enjoy the soothing "sound of water" along with the surrounding greenery. In addition, the "Azumaya" on the hilltop is a great vantage point from which you can get a panoramic view of Sanyoso! [Large

    $1,170.46
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
  • 2025 Spring "Sakura" Course (scheduled for 2/16-4/15)
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,209.97
    Taxes & fees incl.
    Plan details

    <Early Bird 21> Book early and save with this acco [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining/Sakura course)> This is a great [early bird plan] if you make a reservation at least 21 days before your stay. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were first discovered 1,300 years ago, and this area is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Enjoy a quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Please enjoy the kaiseki cuisine "Sakura course" at your leisure in the dining area. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of ingredients. [Information] *The price includes one-night room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you will be arriving after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be far away. *Please refrain from bringing in food and drinks. [Japanese Garden] The garden, which changes beautifully with the seasons, is 3,000 tsubo (10,000 m2). In spring, there are cherry blossoms and azaleas, in summer, maple leaves and dodan azaleas in autumn, and winter cherry blossoms and plum blossoms in winter. Words cannot describe it all. In the center of the garden is a pond, and the sound of the water along with the surrounding greenery will soothe your soul. To get a panoramic

    $1,209.97
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
Room details

Main building detached room (Japanese-style room) with hot spring indoor bath / main room, next room / 97 square meters or more [Deluxe] [Japanese room] [Non-smoking]

No smoking
Max 5 adults / 4 children
Room facilities
  • Bath and toilet separated
  • Bath and toilet available
  • Over 430 square feet
  • Electronic kettle
  • TV
  • Safe deposit box
  • Refrigerator
Room location
  • Annex
Amenities
  • Hairbrushes
  • Toothbrush sets
  • Body soap
  • Cotton swabs
  • Bath towels
  • Face towels
  • Slippers
  • Yukata
  • Hair dryers
  • Conditioner
  • Shower caps
  • Skincare goods
  • Razors
  • Soap
  • Makeup remover
  • Shampoo
No smoking
76 m²
Max 4 adults / 3 children
Room facilities
  • Bath and toilet separated
  • Bath and toilet available
  • Private cottage room
  • Over 430 square feet
  • TV
  • Bidet toilet
  • Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,569.87
    Taxes & fees incl.
    Plan details

    Accommodation plan for staying with your dog (Incl [Breakfast] [Dinner]

    Enjoy a relaxing Japanese holiday with your dog at Sanyo-so. The "Tsubaki" course will be delivered to your room. ■Dinner■ Contents: Assorted course "Tsubaki" Location: Room Meals such as boat-shaped platters and boiled golden-eyed snapper will be delivered to your room in several portions. *Due to the nature of the course, we cannot accommodate allergies. *Please note that there is no dedicated staff to serve the food. ■Breakfast■ Contents: Japanese bento Location: Room *Contents may change depending on the availability of ingredients. [Information] - Small dogs up to 10kg are allowed. - The price for one dog is included in the accommodation fee, and an additional fee of 10,000 yen will be charged for the second dog. - A maximum of two dogs are allowed per room. [Notes] - A maximum of two dogs are allowed per room. ・A consent form for lodging and a rabies vaccination certificate are required to use the facility. Your dog must have received at least five types of vaccines and combination vaccines, and it must have been more than two weeks but less than one year since vaccination. ・Small dogs: Generally, use is limited to dogs weighing less than 10 kg. Some dog breeds may not be allowed to use the facility. ・Dogs cannot be brought into the Japanese garden. ・There are some areas, both indoors and outdoors, where you will be asked to use a lead, carrier, or cage. ・You will be required to agree to and sign the terms of use before using the facility. ・Please refrain from bringing in food or drinks.

    $1,569.87
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
Room details

[Japanese room] [Non-smoking]

No smoking
76 m²
Max 4 adults / 3 children
Room facilities
  • Bath and toilet separated
  • Bath and toilet available
  • Private cottage room
  • Over 430 square feet
  • TV
  • Bidet toilet
  • Refrigerator
  • Two or more rooms
  • Pets allowed in room (dogs)
Room location
  • New building
Amenities
  • Hairbrushes
  • Toothbrush sets
  • Body soap
  • Cotton swabs
  • Bath towels
  • Face towels
  • Yukata
  • Hair dryers
  • Conditioner
  • Shower caps
  • Razors
  • Soap
  • Shampoo
New Wing Suite (Honma)
No smoking
Max 8 adults / 7 children
Room facilities
  • Bath and toilet separated
  • Bath and toilet available
  • Over 430 square feet
  • Electronic kettle
  • TV
  • Safe deposit box
  • New building Japanese style deluxe room
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,817.11
    Taxes & fees incl.
    Plan details

    [Great value for 2 nights or more] Value rate cons [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining hall/Sakura course)> For those who want to enjoy sightseeing in Izu or a relaxing stay. This is a multi-night plan that can be used for various purposes, with room charges, dinner and breakfast included. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were discovered 1,300 years ago, and this place is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Spend quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Please enjoy the kaiseki cuisine "Sakura course" at your leisure in the dining hall. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of ingredients. [Information] *The price includes one person's room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you plan to arrive after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be located some distance away. *Please refrain from bringing in food and drinks. *A cancellation fee will be charged from 5 days prior to your stay. (Cancellation fee: 100% of the accommodation fee) If you cancel up to 6 days prior to your stay, there will be no cancellation fee. *The sales price of this plan varies depending on the reservation status, but the accommodation price will not change after purchase. How

    $1,817.11
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
  • New building entrance
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,817.11
    Taxes & fees incl.
    Plan details

    "Early Bird 60" - Book early and save with this ac [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining/Sakura course)> This is a very advantageous [Early Bird Plan] for those who decide on their travel plans at least 60 days in advance. For those who want to enjoy sightseeing in Izu or a relaxing stay. This plan includes room rate, dinner and breakfast and can be used for various purposes. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were discovered as far back as 1,300 years ago, and this area is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Spend quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Enjoy the "Sakura Course" kaiseki cuisine at your leisure in the dining area. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of supplies. [Information] *The price includes one-night room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you will be arriving after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be far away. [Recommended Viewpoint] There is a pond near the center of the garden, and it is a recommended spot where you can enjoy the soothing "sound of water" along with the surrounding greenery. In addition, the "Azumaya" on the hilltop is a great vantage point from which you can get a panoramic view of Sanyoso! [Large

    $1,817.11
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
  • 2025 Spring "Matsu" Course (scheduled for 2/16-4/15)
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,880.61
    Taxes & fees incl.
    Plan details

    [Great value for 2 nights or more] Value rate cons [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining hall/Matsu course)> For those who want to enjoy sightseeing in Izu or a relaxing stay. This is a multi-night plan that can be used for various purposes, with room charges, dinner and breakfast included. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were discovered 1,300 years ago, and this place is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Spend quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Please enjoy the kaiseki cuisine "Matsu course" at your leisure in the dining hall. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of ingredients. [Information] *The price includes one person's room rate, dinner, breakfast, service charge, and consumption tax. *A hot spring tax (150 yen per adult per night) will be charged separately. *Please contact us if you will be arriving after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be located a distance away. *Please refrain from bringing in food and drinks. ■Cancellation policy A cancellation fee will be charged from 5 days prior to your stay. (Cancellation fee: 100% of the accommodation fee) If you cancel up to 6 days prior to your stay, there will be no cancellation fee. [Japanese Garden] The beautiful garden changes with the seasons in an area of 10,000m2. Cherry blossoms and azale

    $1,880.61
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
Room details

New building Japanese-style room suite with hot spring indoor bath / main room, next room, third room, makeup room [Japanese room] [Non-smoking]

No smoking
Max 8 adults / 7 children
Room facilities
  • Bath and toilet separated
  • Bath and toilet available
  • Over 430 square feet
  • Electronic kettle
  • TV
  • Safe deposit box
  • Refrigerator
Room location
  • New building
Amenities
  • Hairbrushes
  • Toothbrush sets
  • Body soap
  • Cotton swabs
  • Bath towels
  • Face towels
  • Slippers
  • Yukata
  • Hair dryers
  • Conditioner
  • Shower caps
  • Skincare goods
  • Razors
  • Soap
  • Makeup remover
  • Shampoo
Main building Japanese-style suite
No smoking
134 m²
Max 8 adults / 7 children
Room facilities
  • Bath and toilet separated
  • Bath and toilet available
  • Over 430 square feet
  • Electronic kettle
  • TV
  • Safe deposit box
  • New building Japanese style deluxe room
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,817.11
    Taxes & fees incl.
    Plan details

    [Great value for 2 nights or more] Value rate cons [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining hall/Sakura course)> For those who want to enjoy sightseeing in Izu or a relaxing stay. This is a multi-night plan that can be used for various purposes, with room charges, dinner and breakfast included. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were discovered 1,300 years ago, and this place is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Spend quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Please enjoy the kaiseki cuisine "Sakura course" at your leisure in the dining hall. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of ingredients. [Information] *The price includes one person's room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you plan to arrive after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be located some distance away. *Please refrain from bringing in food and drinks. *A cancellation fee will be charged from 5 days prior to your stay. (Cancellation fee: 100% of the accommodation fee) If you cancel up to 6 days prior to your stay, there will be no cancellation fee. *The sales price of this plan varies depending on the reservation status, but the accommodation price will not change after purchase. How

    $1,817.11
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
  • New building entrance
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,817.11
    Taxes & fees incl.
    Plan details

    "Early Bird 60" - Book early and save with this ac [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (dining/Sakura course)> This is a very advantageous [Early Bird Plan] for those who decide on their travel plans at least 60 days in advance. For those who want to enjoy sightseeing in Izu or a relaxing stay. This plan includes room rate, dinner and breakfast and can be used for various purposes. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were discovered as far back as 1,300 years ago, and this area is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Spend quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Enjoy the "Sakura Course" kaiseki cuisine at your leisure in the dining area. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of supplies. [Information] *The price includes one-night room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you will be arriving after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be far away. [Recommended Viewpoint] There is a pond near the center of the garden, and it is a recommended spot where you can enjoy the soothing "sound of water" along with the surrounding greenery. In addition, the "Azumaya" on the hilltop is a great vantage point from which you can get a panoramic view of Sanyoso! [Large

    $1,817.11
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
  • Main Building
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $1,880.61
    Taxes & fees incl.
    Plan details

    "Early Bird 60" - Book early and save with this ac [Breakfast] [Dinner]

    <Contents: Dinner and breakfast included (Meal/Matsu course)> This is a very advantageous [Early Bird Plan] for those who decide on their travel plans at least 60 days in advance. For those who want to enjoy sightseeing in Izu or a relaxing stay. This plan includes room rate, dinner and breakfast and can be used for various purposes. Sanyoso is a Japanese-style inn located in Izu Nagaoka, a hot spring resort in Nakaizu. It is said that the hot springs were discovered as far back as 1,300 years ago, and this place is known as one of the three ancient hot springs of Izu. In 1929, the current main building was built as a villa for Hisaya, the eldest son of Yataro Iwasaki, the founder of the former Mitsubishi zaibatsu. Then, in 1988, the new building was opened, designed by architect Togo Murano, a recipient of the Order of Culture. Spend quality time away from the hustle and bustle of everyday life in a traditional Japanese space surrounded by a beautiful Japanese garden. ■Dinner■ Contents: Japanese kaiseki cuisine Location: Dining Enjoy the "Matsu Course" kaiseki cuisine at your leisure in the dining area. ■Breakfast■ Contents: Japanese set meal Location: Dining Enjoy the "Japanese set meal" that is unique to inns in the dining area. *Ingredients and menus may change depending on the availability of supplies. [Information] *The price includes one person's room rate, dinner, breakfast, service charge, and consumption tax. *A bathing tax (150 yen per adult per night) will be charged separately. *Please contact us if you will be arriving after 5:00 P.M. *Depending on the room you are staying in, the hot spring bath may be far away. [Recommended Viewpoint] There is a pond near the center of the garden, and it is a recommended spot where you can enjoy the soothing "sound of water" along with the surrounding greenery. In addition, the "Azumaya" on the hilltop is a great vantage point from which you can get a panoramic view of Sanyoso! [Large

    $1,880.61
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
Room details

Main building Japanese-style room suite with hot spring indoor bath/Honma, next room, third room, makeup room [Japanese room] [Non-smoking]

No smoking
134 m²
Max 8 adults / 7 children
Room facilities
  • Bath and toilet separated
  • Bath and toilet available
  • Over 430 square feet
  • Electronic kettle
  • TV
  • Safe deposit box
  • Refrigerator
Room location
  • Main building
Amenities
  • Hairbrushes
  • Toothbrush sets
  • Body soap
  • Cotton swabs
  • Bath towels
  • Face towels
  • Slippers
  • Yukata
  • Hair dryers
  • Conditioner
  • Shower caps
  • Skincare goods
  • Razors
  • Soap
  • Makeup remover
  • Shampoo