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Resort hotel

Okukaruizawa Onsen Hotel Green Plaza Karuizawa

Tsumagoi Village, Gunma
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Karuizawa Toy Kingdom official hotel / Family-friendly / Selectable room types / Buffet with many menu options

Guest review score

Very Good
Reviews: 72
3.9

Access

Manza-Kazawaguchi Station
26 min drive
Omae Station
33 min drive
Fukurogura Station
35 min drive

Property facilities

  • Parking lot
  • Sauna
  • Spa / Beauty salon
  • Restaurant
  • Pet-friendly in the building
  • Vending machine

Explore our rooms and plans

Price (low to high)
4 room types
Main building: Japanese-Western style room
No smoking
284.2 ft²
Max 3 adults / 2 children
Room facilities
  • Bath and toilet available
  • Bidet toilet
  • Bathtub available
  • For planning purposes: Breakfast buffet image
    Meal
    Breakfast
    Price for:
    1 night
     | 
     | 
    $164.14
    Taxes & fees incl.
    Plan details

    【Late Arrival OK!】1 Night with Breakfast◆Casual Stay Plan★Enjoy the Okukaruizawa Hot Spring Open-Air Bath♪ [Breakfast]

    ☆★☆★━━━━━━━━━━━━━━━ For those arriving late, you can use the facilities with peace of mind enjoy a budget-friendly and convenient plan♪ ━━━━━━━━━━━━━━━☆★☆★ Hotel Green Plaza Karuizawa is approximately 55 minutes by car from the Usui-Karuizawa Interchange, and is the official hotel of 【Karuizawa Toy Kingdom】. Perfect for family trips, three-generation trips, and families with small children It is used by a wide range of generations, from the elderly to the young. ■Plan Details This is a plan with breakfast only. Late arrival OK! ■Dinner None ■Breakfast Buffet ■ Oku-Karuizawa Hot Springs Outdoor baths with rock baths, cypress baths, indoor baths, and cave baths ・Baby bath & chair, full-body soap in the bathing area, and baby beds and playpens are available in the changing room ■ Karuizawa Toy Kingdom Operating period: Friday, April 18, 2025 - Monday, November 24, 2025 (substitute holiday) Closed days: Every Wednesday from May 7, 2025 (Wednesday) to July 9, 2025 (Wednesday), and Tuesday, July 1, 2025 ※There is a possibility of temporary closure depending on the situation. ■Special hotel services for infants (0–2 years old) ・Rental of Mikihouse brand comfortable pajamas for infants ・Cotton 100% towel sets gentle on children's skin provided in the room ・Children's amenity sets provided in the room ■Nearby Attractions ・Onioshidashi Park / Approximately 5 minutes by car ・Shiraito Falls / Approximately 20 minutes by car ・Karuizawa Wild Bird Forest Picchio Visitor Center / Approximately 35 minutes by car ・Karuizawa Prince Shopping Plaza / Approximately 45 minutes by car ■Regarding reservations for children Infants (with meals and futon): For children aged 3 years to below elementary school age. Infants (without meals and futon): For children under 3 years old. Facility usage fee of 2,000 yen (tax included) will be charged for children aged 0 to 2 years. Age verification may be required for 2-year-old children.

    $164.14
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
  • Restaurant "Asama"
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $212.42
    Taxes & fees incl.
    Plan details

    【Northern Kanto Charm Plan】Buffet Plan ◆ Dinner features about 50 kinds of buffe [Breakfast] [Dinner]

    1 Night 2 Meals Buffet Plan ◇◆◆ ————————— ◆◆◇ and is the official hotel of 【Karuizawa Toy Kingdom】. Perfect for family trips or three-generation trips♪ From families with small children to elderly guests, We cater to a wide range of generations. ■Dinner A buffet of about 50 Japanese, Western, and Chinese dishes Offering hotel-specialty roast beef, etc.♪ In addition to popular sushi, tempura, and local dishes from Joshu and Shinshu, We also have a wide selection of desserts, kids' menus, and age-appropriate baby food! A buffet enjoyable for all generations♪ ※The menu may change depending on the availability of ingredients.Thank you for your understanding. ■Breakfast Japanese-Western buffet ■ Oku-Karuizawa Hot Springs Outdoor baths with rock baths, cypress baths, indoor baths, and cave baths ・In the bath area, there are baby baths & chairs, and full-body soap. The dressing room is equipped with baby beds and playpens. ■Special hotel services for infants (0–2 years old) ・Rental of Mikihouse baby pajamas for infants. ・Cotton 100% towel sets gentle on children's skin provided in the room ・Children's amenity sets provided in the room ■ Karuizawa Toy Kingdom Operating period: Friday, April 18, 2025 - Monday, November 24, 2025 (substitute holiday) Closed days: Every Wednesday from May 7, 2025 (Wednesday) to July 9, 2025 (Wednesday), and Tuesday, July 1, 2025 ※There is a possibility of temporary closure depending on the situation. ■Nearby Attractions ・Onioshidashi Park / Approximately 5 minutes by car ・Shiraito Falls / Approximately 20 minutes by car ・Karuizawa Wild Bird Forest Picchio Visitor Center / Approximately 35 minutes by car ・Karuizawa Prince Shopping Plaza / Approximately 45 minutes by car ・World Heritage Site: Tomioka Silk Mill / About 90 minutes by car. ■Regarding children's fees Infants (with meals and futon): For children aged 3 years to below elementary school age. Infants (without meals and futon): For children under 3 years old. Facility usage fee of 2,000 yen (tax included) will be charged for children aged 0 to 2 years. Age verification may be required for 2-year-old children. ■Regarding shuttle buses The shuttle bus between Karuizawa Station and the hotel is completely reservation-based (free). If you wish to use it, please make a reservation via the dedicated shuttle bus booking site on the official website of Hotel Green Plaza Karuizawa.

    $212.42
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
Room details

(Main Building) [Japanese-western room] [Non-smoking]

No smoking
284.2 ft²
Max 3 adults / 2 children
Room facilities
  • Bath and toilet available
  • Bidet toilet
  • Bathtub available
Connection Hall Japanese-Western Room
No smoking
Max 5 adults / 4 children
Room facilities
  • Bath and toilet available
  • Bidet toilet
  • Bathtub available
  • For planning purposes: Breakfast buffet image
    Meal
    Breakfast
    Price for:
    1 night
     | 
     | 
    $180.70
    Taxes & fees incl.
    Plan details

    【Late Arrival OK!】1 Night with Breakfast◆Casual Stay Plan★Enjoy the Okukaruizawa Hot Spring Open-Air Bath♪ [Breakfast]

    ☆★☆★━━━━━━━━━━━━━━━ For those arriving late, you can use the facilities with peace of mind enjoy a budget-friendly and convenient plan♪ ━━━━━━━━━━━━━━━☆★☆★ Hotel Green Plaza Karuizawa is approximately 55 minutes by car from the Usui-Karuizawa Interchange, and is the official hotel of 【Karuizawa Toy Kingdom】. Perfect for family trips, three-generation trips, and families with small children It is used by a wide range of generations, from the elderly to the young. ■Plan Details This is a plan with breakfast only. Late arrival OK! ■Dinner None ■Breakfast Buffet ■ Oku-Karuizawa Hot Springs Outdoor baths with rock baths, cypress baths, indoor baths, and cave baths ・Baby bath & chair, full-body soap in the bathing area, and baby beds and playpens are available in the changing room ■ Karuizawa Toy Kingdom Operating period: Friday, April 18, 2025 - Monday, November 24, 2025 (substitute holiday) Closed days: Every Wednesday from May 7, 2025 (Wednesday) to July 9, 2025 (Wednesday), and Tuesday, July 1, 2025 ※There is a possibility of temporary closure depending on the situation. ■Special hotel services for infants (0–2 years old) ・Rental of Mikihouse brand comfortable pajamas for infants ・Cotton 100% towel sets gentle on children's skin provided in the room ・Children's amenity sets provided in the room ■Nearby Attractions ・Onioshidashi Park / Approximately 5 minutes by car ・Shiraito Falls / Approximately 20 minutes by car ・Karuizawa Wild Bird Forest Picchio Visitor Center / Approximately 35 minutes by car ・Karuizawa Prince Shopping Plaza / Approximately 45 minutes by car ■Regarding reservations for children Infants (with meals and futon): For children aged 3 years to below elementary school age. Infants (without meals and futon): For children under 3 years old. Facility usage fee of 2,000 yen (tax included) will be charged for children aged 0 to 2 years. Age verification may be required for 2-year-old children.

    $180.70
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
  • Restaurant "Asama"
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $228.98
    Taxes & fees incl.
    Plan details

    【Northern Kanto Charm Plan】Buffet Plan ◆ Dinner features about 50 kinds of buffe [Breakfast] [Dinner]

    1 Night 2 Meals Buffet Plan ◇◆◆ ————————— ◆◆◇ and is the official hotel of 【Karuizawa Toy Kingdom】. Perfect for family trips or three-generation trips♪ From families with small children to elderly guests, We cater to a wide range of generations. ■Dinner A buffet of about 50 Japanese, Western, and Chinese dishes Offering hotel-specialty roast beef, etc.♪ In addition to popular sushi, tempura, and local dishes from Joshu and Shinshu, We also have a wide selection of desserts, kids' menus, and age-appropriate baby food! A buffet enjoyable for all generations♪ ※The menu may change depending on the availability of ingredients.Thank you for your understanding. ■Breakfast Japanese-Western buffet ■ Oku-Karuizawa Hot Springs Outdoor baths with rock baths, cypress baths, indoor baths, and cave baths ・In the bath area, there are baby baths & chairs, and full-body soap. The dressing room is equipped with baby beds and playpens. ■Special hotel services for infants (0–2 years old) ・Rental of Mikihouse baby pajamas for infants. ・Cotton 100% towel sets gentle on children's skin provided in the room ・Children's amenity sets provided in the room ■ Karuizawa Toy Kingdom Operating period: Friday, April 18, 2025 - Monday, November 24, 2025 (substitute holiday) Closed days: Every Wednesday from May 7, 2025 (Wednesday) to July 9, 2025 (Wednesday), and Tuesday, July 1, 2025 ※There is a possibility of temporary closure depending on the situation. ■Nearby Attractions ・Onioshidashi Park / Approximately 5 minutes by car ・Shiraito Falls / Approximately 20 minutes by car ・Karuizawa Wild Bird Forest Picchio Visitor Center / Approximately 35 minutes by car ・Karuizawa Prince Shopping Plaza / Approximately 45 minutes by car ・World Heritage Site: Tomioka Silk Mill / About 90 minutes by car. ■Regarding children's fees Infants (with meals and futon): For children aged 3 years to below elementary school age. Infants (without meals and futon): For children under 3 years old. Facility usage fee of 2,000 yen (tax included) will be charged for children aged 0 to 2 years. Age verification may be required for 2-year-old children. ■Regarding shuttle buses The shuttle bus between Karuizawa Station and the hotel is completely reservation-based (free). If you wish to use it, please make a reservation via the dedicated shuttle bus booking site on the official website of Hotel Green Plaza Karuizawa.

    $228.98
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
Room details

(Connection Hall) [Japanese-western room] [Non-smoking]

No smoking
Max 5 adults / 4 children
Room facilities
  • Bath and toilet available
  • Bidet toilet
  • Bathtub available
Connection Building, Maisonette type (1st floor, Japanese-style room)
No smoking
Max 7 adults / 6 children
Room facilities
  • Bath and toilet available
  • Bathtub available
  • For planning purposes: Breakfast buffet image
    Meal
    Breakfast
    Price for:
    1 night
     | 
     | 
    $222.08
    Taxes & fees incl.
    Plan details

    【Late Arrival OK!】1 Night with Breakfast◆Casual Stay Plan★Enjoy the Okukaruizawa Hot Spring Open-Air Bath♪ [Breakfast]

    ☆★☆★━━━━━━━━━━━━━━━ For those arriving late, you can use the facilities with peace of mind enjoy a budget-friendly and convenient plan♪ ━━━━━━━━━━━━━━━☆★☆★ Hotel Green Plaza Karuizawa is approximately 55 minutes by car from the Usui-Karuizawa Interchange, and is the official hotel of 【Karuizawa Toy Kingdom】. Perfect for family trips, three-generation trips, and families with small children It is used by a wide range of generations, from the elderly to the young. ■Plan Details This is a plan with breakfast only. Late arrival OK! ■Dinner None ■Breakfast Buffet ■ Oku-Karuizawa Hot Springs Outdoor baths with rock baths, cypress baths, indoor baths, and cave baths ・Baby bath & chair, full-body soap in the bathing area, and baby beds and playpens are available in the changing room ■ Karuizawa Toy Kingdom Operating period: Friday, April 18, 2025 - Monday, November 24, 2025 (substitute holiday) Closed days: Every Wednesday from May 7, 2025 (Wednesday) to July 9, 2025 (Wednesday), and Tuesday, July 1, 2025 ※There is a possibility of temporary closure depending on the situation. ■Special hotel services for infants (0–2 years old) ・Rental of Mikihouse brand comfortable pajamas for infants ・Cotton 100% towel sets gentle on children's skin provided in the room ・Children's amenity sets provided in the room ■Nearby Attractions ・Onioshidashi Park / Approximately 5 minutes by car ・Shiraito Falls / Approximately 20 minutes by car ・Karuizawa Wild Bird Forest Picchio Visitor Center / Approximately 35 minutes by car ・Karuizawa Prince Shopping Plaza / Approximately 45 minutes by car ■Regarding reservations for children Infants (with meals and futon): For children aged 3 years to below elementary school age. Infants (without meals and futon): For children under 3 years old. Facility usage fee of 2,000 yen (tax included) will be charged for children aged 0 to 2 years. Age verification may be required for 2-year-old children.

    $222.08
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
  • Restaurant "Asama"
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $270.36
    Taxes & fees incl.
    Plan details

    【Northern Kanto Charm Plan】Buffet Plan ◆ Dinner features about 50 kinds of buffe [Breakfast] [Dinner]

    1 Night 2 Meals Buffet Plan ◇◆◆ ————————— ◆◆◇ and is the official hotel of 【Karuizawa Toy Kingdom】. Perfect for family trips or three-generation trips♪ From families with small children to elderly guests, We cater to a wide range of generations. ■Dinner A buffet of about 50 Japanese, Western, and Chinese dishes Offering hotel-specialty roast beef, etc.♪ In addition to popular sushi, tempura, and local dishes from Joshu and Shinshu, We also have a wide selection of desserts, kids' menus, and age-appropriate baby food! A buffet enjoyable for all generations♪ ※The menu may change depending on the availability of ingredients.Thank you for your understanding. ■Breakfast Japanese-Western buffet ■ Oku-Karuizawa Hot Springs Outdoor baths with rock baths, cypress baths, indoor baths, and cave baths ・In the bath area, there are baby baths & chairs, and full-body soap. The dressing room is equipped with baby beds and playpens. ■Special hotel services for infants (0–2 years old) ・Rental of Mikihouse baby pajamas for infants. ・Cotton 100% towel sets gentle on children's skin provided in the room ・Children's amenity sets provided in the room ■ Karuizawa Toy Kingdom Operating period: Friday, April 18, 2025 - Monday, November 24, 2025 (substitute holiday) Closed days: Every Wednesday from May 7, 2025 (Wednesday) to July 9, 2025 (Wednesday), and Tuesday, July 1, 2025 ※There is a possibility of temporary closure depending on the situation. ■Nearby Attractions ・Onioshidashi Park / Approximately 5 minutes by car ・Shiraito Falls / Approximately 20 minutes by car ・Karuizawa Wild Bird Forest Picchio Visitor Center / Approximately 35 minutes by car ・Karuizawa Prince Shopping Plaza / Approximately 45 minutes by car ・World Heritage Site: Tomioka Silk Mill / About 90 minutes by car. ■Regarding children's fees Infants (with meals and futon): For children aged 3 years to below elementary school age. Infants (without meals and futon): For children under 3 years old. Facility usage fee of 2,000 yen (tax included) will be charged for children aged 0 to 2 years. Age verification may be required for 2-year-old children. ■Regarding shuttle buses The shuttle bus between Karuizawa Station and the hotel is completely reservation-based (free). If you wish to use it, please make a reservation via the dedicated shuttle bus booking site on the official website of Hotel Green Plaza Karuizawa.

    $270.36
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
Room details

Maisonette Type (Connection Building) [Japanese-western room] [Maisonette] [Non-smoking]

No smoking
Max 7 adults / 6 children
Room facilities
  • Bath and toilet available
  • Bathtub available
Baby Room
No smoking
Max 3 adults / 2 children
Room facilities
  • Bath and toilet available
  • Bidet toilet
  • Bathtub available
  • ★Certified as a "Baby-Welcome Accommodation" by the Miki House Childrearing Research Institute
    Meal
    Breakfast
    Dinner
    Price for:
    1 night
     | 
     | 
    $233.11
    Taxes & fees incl.
    Plan details

    ☆4/11〜11/24【Baby-Friendly】Baby Plan◆Welcome Baby Inn♪ Full of Benefits [Breakfast] [Dinner]

    [Certified by MIKIHOUSE Childrearing Research Institute] Great for moms and dads raising children! A comfortable and safe plan just for babies♪ ━━━━━━━━━━━☆★☆★ ◆◇Great! Points◇◆ A special room with plenty of baby goods and safety in mind♪ Combi Plumea (baby rack & baby chair), booster toilet seat, step stool, baby futon, humidifier, baby body soap, baby wipes, non-alcoholic wet tissues, double the usual set of towels, etc. ※Subject to change ◇Great hotel services for infants (0-2 years old)◇ ☆Miki House's comfortable pajamas for infants available for rental ☆100% cotton towel set that is gentle on your child's skin provided in the room ☆Children's amenity set provided in the room ◇Benefits◇ ☆Check-in at 2pm (usually 3pm) / Check-out at 11am (usually 10am) ☆Double the set of towels ☆5 paper diapers and 1 baby food gift at the shop ☆One admission ticket to Toy Kingdom per person per night  ※Only during Toy Kingdom's operating hours  ※Please purchase a separate ticket for 2-year-old children. ●Karuizawa Toy Kingdom Business Period● Business period: Friday, April 18th, 2025 to Monday, November 24th, 2025 (substitute holiday) Closed: Every Wednesday from Wednesday, May 7th to Wednesday, July 9th, 2025 and Tuesday, July 1st, 2025 *There is a possibility of temporary closure depending on the situation. ■Dinner A buffet with about 50 types of Japanese, Western and Chinese dishes A wide variety of kids' menus and baby food for different ages! *The menu may change depending on the season and availability. *The menu lists the seven major allergens. There are some points to note regarding food, so please contact the hotel staff for details ■Breakfast Buffet ■Hot spring ★Baby bathing OK! ☆The spring water is gentle on children's skin. ★Baby baths and chairs, full-body soap, and baby beds and playpens in the changing room. ■About bookings for children Infants (meals and bedding included): For children aged 3 to pre-elementary school age.

    $233.11
    Taxes & fees incl.
    1 room 2 guests 1 night
    Meals
    • Breakfast
    • Dinner
Room details

Japanese-Western style room exclusive to the 'Baby Plan' (Main Building) [Japanese-western room] [Non-smoking]

No smoking
Max 3 adults / 2 children
Room facilities
  • Bath and toilet available
  • Bidet toilet
  • Bathtub available