
Amazing location within walking distance of Isawa-Onsen Station. The largest hot spring resort in the prefecture in terms of scale and range of facilities.


Free cancellation until 19/03/2026 23:59(JST)
This is Keizan's recommended plan, where you can enjoy our abundant private hot springs, and local cuisine such as Yamanashi Prefecture Kuroge Wagyu beef steak and Koshu specialty hot pot for dinner. Keizan's proud private hot springs are "beautiful skin baths" that have a soft touch and make your skin smooth. The large bath and open-air bath are on a rotation system for men and women, so you can enjoy all of the baths. There is also a convenience store, "Yamazaki Y Shop," in the building. * Lunch boxes, rice balls, sandwiches, etc. are not sold at the convenience store in the building. The very popular "Keizan Taiko Show" by our staff is also held every night from 20:30. (May be canceled) ●Dinner: Japanese Kaiseki in a private room *Can be changed to <Special live eel meal> for an additional fee (adults only) Enjoy local cuisine, including Yamanashi Prefecture Kuroge Wagyu beef steak and Koshu specialty hoto hotpot. [Japanese Kaiseki menu example] ・Aperitif ・Appetizer ・Sashimi ・Yamanashi Prefecture Kuroge Wagyu beef steak (30g) ・Stew ・Ozashiki tempura ・Koshu specialty hoto hotpot ・Pickles ・Soup ・Rice ・Fruit [11 dishes in total] *The menu example is for adults. To guests who wish to change to <Special live eel meal> *We apologize for the inconvenience, but please contact the inn at the time of or after making your reservation. *Please inform us of the number of people to change to. Changes are possible for one person or more. *We accept requests up until noon on the day of your stay. Please contact us by phone if you would like to make a reservation within 3 days of your stay. <Special live eel set menu> Additional 4,400 yen per person (tax included, pay on site) ・Appetizer ・Special live eel rice bowl from Kagoshima Prefecture ・Liver soup ・Sashimi ・Tempura ・Pickles ・Fruit ●Breakfast Buffet at the restaurant *Photos of food, rooms, etc. are for illustrative purposes only.
Consumption tax (from 01/10/2019) (Per person per night) 10%
Bathing tax (from 01/04/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Japanese room, Smoking/non-smoking not specified ([10 tatami])


Free cancellation until 19/03/2026 23:59(JST)
This is Keizan's recommended plan, where you can enjoy our abundant private hot springs, and local cuisine such as Yamanashi Prefecture Kuroge Wagyu beef steak and Koshu specialty hot pot for dinner. Keizan's proud private hot springs are "beautiful skin baths" that have a soft touch and make your skin smooth. The large bath and open-air bath are on a rotation system for men and women, so you can enjoy all of the baths. There is also a convenience store, "Yamazaki Y Shop," in the building. * Lunch boxes, rice balls, sandwiches, etc. are not sold at the convenience store in the building. The very popular "Keizan Taiko Show" by our staff is also held every night from 20:30. (May be canceled) ●Dinner: Japanese Kaiseki in a private room *Can be changed to <Special live eel meal> for an additional fee (adults only) Enjoy local cuisine, including Yamanashi Prefecture Kuroge Wagyu beef steak and Koshu specialty hoto hotpot. [Japanese Kaiseki menu example] ・Aperitif ・Appetizer ・Sashimi ・Yamanashi Prefecture Kuroge Wagyu beef steak (30g) ・Stew ・Ozashiki tempura ・Koshu specialty hoto hotpot ・Pickles ・Soup ・Rice ・Fruit [11 dishes in total] *The menu example is for adults. To guests who wish to change to <Special live eel meal> *We apologize for the inconvenience, but please contact the inn at the time of or after making your reservation. *Please inform us of the number of people to change to. Changes are possible for one person or more. *We accept requests up until noon on the day of your stay. Please contact us by phone if you would like to make a reservation within 3 days of your stay. <Special live eel set menu> Additional 4,400 yen per person (tax included, pay on site) ・Appetizer ・Special live eel rice bowl from Kagoshima Prefecture ・Liver soup ・Sashimi ・Tempura ・Pickles ・Fruit ●Breakfast Buffet at the restaurant *Photos of food, rooms, etc. are for illustrative purposes only.
Consumption tax (from 01/10/2019) (Per person per night) 10%
Bathing tax (from 01/04/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Japanese room, Non-smoking ([10 tatami])


Free cancellation until 19/03/2026 23:59(JST)
Room with open-air bath [Shokakuden] Japanese-Western room (9 tatami + 2 beds / 2–4 guests) Japanese-Western room (8 tatami + 2 beds / 2–3 guests) Japanese-Western room (5 tatami + 2 beds / 2 guests) Japanese-style room (10 tatami + 7 tatami / 2–5 guests) Japanese-style room (8 tatami + 6 tatami / 2–3 guests) Western-style twin room (19.4㎡ / 2 guests) This is a plan to stay in any of these rooms at a great value. Accommodation will be based on the room type you applied for. Japanese-Western style rooms (8 tatami + 2 beds) and (5 tatami + 2 beds), Japanese-style room (8 tatami + 6 tatami), and Western-style twin room (19.4㎡)—9 of the Japanese-Western style rooms (5 tatami + 2 beds) are [semi-barrier-free rooms]. For customers who wish to book a semi-barrier-free room in a Japanese-Western style room (5 tatami + 2 beds), please contact us after making your reservation. Capacity of the bathtub in the guest room's open-air bath: 2 people View from the guest room's open-air bath: Mountain The guestroom open-air bath is 100% natural hot spring water flowing directly from its source (no added water or heating). There is no indoor bath. The guestroom open-air baths in our facility are semi-open with three walls and a ceiling, featuring one side with a window that can be opened or closed. The guest room is non-smoking, but there is a smoking room available inside the guest room. Excluding Japanese-Western style rooms (8 tatami + 2 beds) and Western-style twin rooms (19.4㎡) Height of beds in Japanese-Western style rooms and Western-style rooms: 44–50cm Dinner: Banquet cuisine served in a private room. For an additional fee, it can be changed to <Special Fresh Eel Meal> (adults only). Enjoy local dishes featuring Koshu wine beef steak (30g) and Koshu specialty Hoto hot pot. For adults only For customers wishing to change to <Special Fresh Eel Meal> We kindly ask you to contact the accommodation either at the time of booking or afterwards (phone calls are accepted between 9 AM and 7 PM). Please inform us of the number of people changing. Changes can be made starting from one person. We accept changes up until noon on the day of your stay. For contact within three days prior to your stay, please call us. <Special Fresh Eel Meal>: Additional 4,400 yen per person (tax included, payable on-site). ・Appetizer ・Kagoshima Prefecture's Special Fresh Eel Rice Bowl ・Eel liver soup ・Sashimi ・Tempura ・Pickled vegetables ・Seasonal fruit Breakfast Buffet at the restaurant Wheelchair use inside guest rooms (including semi-barrier-free rooms) is not possible. * Photos of the food and rooms are all for illustrative purposes and examples only.
Consumption tax (from 01/10/2019) (Per person per night) 10%
Bathing tax (from 01/04/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Standard Twin room, Non-smoking


Free cancellation until 19/03/2026 23:59(JST)
Room with open-air bath [Shokakuden] Japanese-Western room (9 tatami + 2 beds / 2–4 guests) Japanese-Western room (8 tatami + 2 beds / 2–3 guests) Japanese-Western room (5 tatami + 2 beds / 2 guests) Japanese-style room (10 tatami + 7 tatami / 2–5 guests) Japanese-style room (8 tatami + 6 tatami / 2–3 guests) Western-style twin room (19.4㎡ / 2 guests) This is a plan to stay in any of these rooms at a great value. Accommodation will be based on the room type you applied for. Japanese-Western style rooms (8 tatami + 2 beds) and (5 tatami + 2 beds), Japanese-style room (8 tatami + 6 tatami), and Western-style twin room (19.4㎡)—9 of the Japanese-Western style rooms (5 tatami + 2 beds) are [semi-barrier-free rooms]. For customers who wish to book a semi-barrier-free room in a Japanese-Western style room (5 tatami + 2 beds), please contact us after making your reservation. Capacity of the bathtub in the guest room's open-air bath: 2 people View from the guest room's open-air bath: Mountain The guestroom open-air bath is 100% natural hot spring water flowing directly from its source (no added water or heating). There is no indoor bath. The guestroom open-air baths in our facility are semi-open with three walls and a ceiling, featuring one side with a window that can be opened or closed. The guest room is non-smoking, but there is a smoking room available inside the guest room. Excluding Japanese-Western style rooms (8 tatami + 2 beds) and Western-style twin rooms (19.4㎡) Height of beds in Japanese-Western style rooms and Western-style rooms: 44–50cm Dinner: Banquet cuisine served in a private room. For an additional fee, it can be changed to <Special Fresh Eel Meal> (adults only). Enjoy local dishes featuring Koshu wine beef steak (30g) and Koshu specialty Hoto hot pot. For adults only For customers wishing to change to <Special Fresh Eel Meal> We kindly ask you to contact the accommodation either at the time of booking or afterwards (phone calls are accepted between 9 AM and 7 PM). Please inform us of the number of people changing. Changes can be made starting from one person. We accept changes up until noon on the day of your stay. For contact within three days prior to your stay, please call us. <Special Fresh Eel Meal>: Additional 4,400 yen per person (tax included, payable on-site). ・Appetizer ・Kagoshima Prefecture's Special Fresh Eel Rice Bowl ・Eel liver soup ・Sashimi ・Tempura ・Pickled vegetables ・Seasonal fruit Breakfast Buffet at the restaurant Wheelchair use inside guest rooms (including semi-barrier-free rooms) is not possible. * Photos of the food and rooms are all for illustrative purposes and examples only.
Consumption tax (from 01/10/2019) (Per person per night) 10%
Bathing tax (from 01/04/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Japanese-western room, Non-smoking


Free cancellation until 19/03/2026 23:59(JST)
Room with open-air bath [Shokakuden] Japanese-Western room (9 tatami + 2 beds / 2–4 guests) Japanese-Western room (8 tatami + 2 beds / 2–3 guests) Japanese-Western room (5 tatami + 2 beds / 2 guests) Japanese-style room (10 tatami + 7 tatami / 2–5 guests) Japanese-style room (8 tatami + 6 tatami / 2–3 guests) Western-style twin room (19.4㎡ / 2 guests) This is a plan to stay in any of these rooms at a great value. Accommodation will be based on the room type you applied for. Japanese-Western style rooms (8 tatami + 2 beds) and (5 tatami + 2 beds), Japanese-style room (8 tatami + 6 tatami), and Western-style twin room (19.4㎡)—9 of the Japanese-Western style rooms (5 tatami + 2 beds) are [semi-barrier-free rooms]. For customers who wish to book a semi-barrier-free room in a Japanese-Western style room (5 tatami + 2 beds), please contact us after making your reservation. Capacity of the bathtub in the guest room's open-air bath: 2 people View from the guest room's open-air bath: Mountain The guestroom open-air bath is 100% natural hot spring water flowing directly from its source (no added water or heating). There is no indoor bath. The guestroom open-air baths in our facility are semi-open with three walls and a ceiling, featuring one side with a window that can be opened or closed. The guest room is non-smoking, but there is a smoking room available inside the guest room. Excluding Japanese-Western style rooms (8 tatami + 2 beds) and Western-style twin rooms (19.4㎡) Height of beds in Japanese-Western style rooms and Western-style rooms: 44–50cm Dinner: Banquet cuisine served in a private room. For an additional fee, it can be changed to <Special Fresh Eel Meal> (adults only). Enjoy local dishes featuring Koshu wine beef steak (30g) and Koshu specialty Hoto hot pot. For adults only For customers wishing to change to <Special Fresh Eel Meal> We kindly ask you to contact the accommodation either at the time of booking or afterwards (phone calls are accepted between 9 AM and 7 PM). Please inform us of the number of people changing. Changes can be made starting from one person. We accept changes up until noon on the day of your stay. For contact within three days prior to your stay, please call us. <Special Fresh Eel Meal>: Additional 4,400 yen per person (tax included, payable on-site). ・Appetizer ・Kagoshima Prefecture's Special Fresh Eel Rice Bowl ・Eel liver soup ・Sashimi ・Tempura ・Pickled vegetables ・Seasonal fruit Breakfast Buffet at the restaurant Wheelchair use inside guest rooms (including semi-barrier-free rooms) is not possible. * Photos of the food and rooms are all for illustrative purposes and examples only.
Consumption tax (from 01/10/2019) (Per person per night) 10%
Bathing tax (from 01/04/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Japanese room, Non-smoking


Free cancellation until 19/03/2026 23:59(JST)
Room with open-air bath [Shokakuden] Japanese-Western room (9 tatami + 2 beds / 2–4 guests) Japanese-Western room (8 tatami + 2 beds / 2–3 guests) Japanese-Western room (5 tatami + 2 beds / 2 guests) Japanese-style room (10 tatami + 7 tatami / 2–5 guests) Japanese-style room (8 tatami + 6 tatami / 2–3 guests) Western-style twin room (19.4㎡ / 2 guests) This is a plan to stay in any of these rooms at a great value. Accommodation will be based on the room type you applied for. Japanese-Western style rooms (8 tatami + 2 beds) and (5 tatami + 2 beds), Japanese-style room (8 tatami + 6 tatami), and Western-style twin room (19.4㎡)—9 of the Japanese-Western style rooms (5 tatami + 2 beds) are [semi-barrier-free rooms]. For customers who wish to book a semi-barrier-free room in a Japanese-Western style room (5 tatami + 2 beds), please contact us after making your reservation. Capacity of the bathtub in the guest room's open-air bath: 2 people View from the guest room's open-air bath: Mountain The guestroom open-air bath is 100% natural hot spring water flowing directly from its source (no added water or heating). There is no indoor bath. The guestroom open-air baths in our facility are semi-open with three walls and a ceiling, featuring one side with a window that can be opened or closed. The guest room is non-smoking, but there is a smoking room available inside the guest room. Excluding Japanese-Western style rooms (8 tatami + 2 beds) and Western-style twin rooms (19.4㎡) Height of beds in Japanese-Western style rooms and Western-style rooms: 44–50cm Dinner: Banquet cuisine served in a private room. For an additional fee, it can be changed to <Special Fresh Eel Meal> (adults only). Enjoy local dishes featuring Koshu wine beef steak (30g) and Koshu specialty Hoto hot pot. For adults only For customers wishing to change to <Special Fresh Eel Meal> We kindly ask you to contact the accommodation either at the time of booking or afterwards (phone calls are accepted between 9 AM and 7 PM). Please inform us of the number of people changing. Changes can be made starting from one person. We accept changes up until noon on the day of your stay. For contact within three days prior to your stay, please call us. <Special Fresh Eel Meal>: Additional 4,400 yen per person (tax included, payable on-site). ・Appetizer ・Kagoshima Prefecture's Special Fresh Eel Rice Bowl ・Eel liver soup ・Sashimi ・Tempura ・Pickled vegetables ・Seasonal fruit Breakfast Buffet at the restaurant Wheelchair use inside guest rooms (including semi-barrier-free rooms) is not possible. * Photos of the food and rooms are all for illustrative purposes and examples only.
Consumption tax (from 01/10/2019) (Per person per night) 10%
Bathing tax (from 01/04/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Japanese-western room, Non-smoking


Free cancellation until 19/03/2026 23:59(JST)
Room with open-air bath [Shokakuden] Japanese-Western room (9 tatami + 2 beds / 2–4 guests) Japanese-Western room (8 tatami + 2 beds / 2–3 guests) Japanese-Western room (5 tatami + 2 beds / 2 guests) Japanese-style room (10 tatami + 7 tatami / 2–5 guests) Japanese-style room (8 tatami + 6 tatami / 2–3 guests) Western-style twin room (19.4㎡ / 2 guests) This is a plan to stay in any of these rooms at a great value. Accommodation will be based on the room type you applied for. Japanese-Western style rooms (8 tatami + 2 beds) and (5 tatami + 2 beds), Japanese-style room (8 tatami + 6 tatami), and Western-style twin room (19.4㎡)—9 of the Japanese-Western style rooms (5 tatami + 2 beds) are [semi-barrier-free rooms]. For customers who wish to book a semi-barrier-free room in a Japanese-Western style room (5 tatami + 2 beds), please contact us after making your reservation. Capacity of the bathtub in the guest room's open-air bath: 2 people View from the guest room's open-air bath: Mountain The guestroom open-air bath is 100% natural hot spring water flowing directly from its source (no added water or heating). There is no indoor bath. The guestroom open-air baths in our facility are semi-open with three walls and a ceiling, featuring one side with a window that can be opened or closed. The guest room is non-smoking, but there is a smoking room available inside the guest room. Excluding Japanese-Western style rooms (8 tatami + 2 beds) and Western-style twin rooms (19.4㎡) Height of beds in Japanese-Western style rooms and Western-style rooms: 44–50cm Dinner: Banquet cuisine served in a private room. For an additional fee, it can be changed to <Special Fresh Eel Meal> (adults only). Enjoy local dishes featuring Koshu wine beef steak (30g) and Koshu specialty Hoto hot pot. For adults only For customers wishing to change to <Special Fresh Eel Meal> We kindly ask you to contact the accommodation either at the time of booking or afterwards (phone calls are accepted between 9 AM and 7 PM). Please inform us of the number of people changing. Changes can be made starting from one person. We accept changes up until noon on the day of your stay. For contact within three days prior to your stay, please call us. <Special Fresh Eel Meal>: Additional 4,400 yen per person (tax included, payable on-site). ・Appetizer ・Kagoshima Prefecture's Special Fresh Eel Rice Bowl ・Eel liver soup ・Sashimi ・Tempura ・Pickled vegetables ・Seasonal fruit Breakfast Buffet at the restaurant Wheelchair use inside guest rooms (including semi-barrier-free rooms) is not possible. * Photos of the food and rooms are all for illustrative purposes and examples only.
Consumption tax (from 01/10/2019) (Per person per night) 10%
Bathing tax (from 01/04/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Japanese room, Non-smoking


Free cancellation until 19/03/2026 23:59(JST)
Room with open-air bath [Shokakuden] Japanese-Western room (9 tatami + 2 beds / 2–4 guests) Japanese-Western room (8 tatami + 2 beds / 2–3 guests) Japanese-Western room (5 tatami + 2 beds / 2 guests) Japanese-style room (10 tatami + 7 tatami / 2–5 guests) Japanese-style room (8 tatami + 6 tatami / 2–3 guests) Western-style twin room (19.4㎡ / 2 guests) This is a plan to stay in any of these rooms at a great value. Accommodation will be based on the room type you applied for. Japanese-Western style rooms (8 tatami + 2 beds) and (5 tatami + 2 beds), Japanese-style room (8 tatami + 6 tatami), and Western-style twin room (19.4㎡)—9 of the Japanese-Western style rooms (5 tatami + 2 beds) are [semi-barrier-free rooms]. For customers who wish to book a semi-barrier-free room in a Japanese-Western style room (5 tatami + 2 beds), please contact us after making your reservation. Capacity of the bathtub in the guest room's open-air bath: 2 people View from the guest room's open-air bath: Mountain The guestroom open-air bath is 100% natural hot spring water flowing directly from its source (no added water or heating). There is no indoor bath. The guestroom open-air baths in our facility are semi-open with three walls and a ceiling, featuring one side with a window that can be opened or closed. The guest room is non-smoking, but there is a smoking room available inside the guest room. Excluding Japanese-Western style rooms (8 tatami + 2 beds) and Western-style twin rooms (19.4㎡) Height of beds in Japanese-Western style rooms and Western-style rooms: 44–50cm Dinner: Banquet cuisine served in a private room. For an additional fee, it can be changed to <Special Fresh Eel Meal> (adults only). Enjoy local dishes featuring Koshu wine beef steak (30g) and Koshu specialty Hoto hot pot. For adults only For customers wishing to change to <Special Fresh Eel Meal> We kindly ask you to contact the accommodation either at the time of booking or afterwards (phone calls are accepted between 9 AM and 7 PM). Please inform us of the number of people changing. Changes can be made starting from one person. We accept changes up until noon on the day of your stay. For contact within three days prior to your stay, please call us. <Special Fresh Eel Meal>: Additional 4,400 yen per person (tax included, payable on-site). ・Appetizer ・Kagoshima Prefecture's Special Fresh Eel Rice Bowl ・Eel liver soup ・Sashimi ・Tempura ・Pickled vegetables ・Seasonal fruit Breakfast Buffet at the restaurant Wheelchair use inside guest rooms (including semi-barrier-free rooms) is not possible. * Photos of the food and rooms are all for illustrative purposes and examples only.
Consumption tax (from 01/10/2019) (Per person per night) 10%
Bathing tax (from 01/04/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Japanese-western room, Non-smoking


Free cancellation until 19/03/2026 23:59(JST)
Special room with open-air bath and sauna ~Japanese-style~ (Nagomi) Japanese-Western style room (Living + 2 beds + 6 tatami / For 2-4 guests) Relax in a harmonious space and enjoy a blissful time. Guestroom open-air bath (Bathtub capacity: 2 people, View: Mountain) The guestroom open-air bath is 100% natural hot spring water flowing directly from its source (no added water or heating). There is no indoor bath. The guestroom open-air baths in our facility are semi-open with three walls and a ceiling, featuring one side with a window that can be opened or closed. Sauna and cold bath This is an authentic sauna where you can enjoy löyly. Living room (18.2㎡) + Western-style room (13.8㎡) + Japanese-style room (6 tatami) The space includes a living room where everyone can relax, a calm Western-style room with two beds, and a Japanese-style room where you can unwind on tatami mats. The guest room is non-smoking, but there is a smoking room available inside the guest room. Western-style bed height: 44–50 cm For customers using a single room with 3 or more people (including children using futons) Since the Western-style room has up to 2 beds and the Japanese-style room can accommodate up to 2 futons, sleeping arrangements will be divided into two rooms. Both the Western-style and Japanese-style rooms can be locked from the inside. Dinner [Japanese banquet cuisine served in a private room] Enjoy a pre-dinner drink of 100% Yamanashi Prefecture-produced glass wine (only for those aged 20 and over), a steak of 'Koshu Beef' with tender texture, vibrant meat color, and rich flavor (50g), and various dishes crafted with local and seasonal ingredients, including the Koshu specialty 'Hoto' noodles. For adults only For those who wish, the dinner menu can be changed (free of charge). For adults only [Seasonal Kaiseki Cuisine at Itamae Kappo 'Sho'] Changes can be made for each group. [Steak Kaiseki at Teppanyaki Dining 'Sen'] Changes can be made for each group. [Private Room Special: 'Premium Live Eel Meal'] Changes possible from one person onward. For guests who wish to reserve, please contact the inn at least 4 days before your stay (calls can be made between 9 AM and 7 PM). Depending on availability or circumstances such as accompanying children, changes may not be possible. Thank you for your understanding. Breakfast [Japanese-style in a private room]or[Western-style in a private room]or[Buffet at the restaurant] * You can choose either in advance or at check-in. *Wheelchairs cannot be used inside the guest rooms. * Photos of the food and rooms are all for illustrative purposes and examples only.
Consumption tax (from 01/10/2019) (Per person per night) 10%
Bathing tax (from 01/04/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Deluxe suite Japanese-western room, Non-smoking (Special Room with Open-Air Bath and Sauna ~ Wa ~ Japanese-Western Style Room (Living Room + Two Rooms))