For Reservation
【 Payment 】
Payment can be made in cash or by various credit cards (VISA, Master, JCB, American Express, Diners Club, UnionPay).
【 About Cancellation 】
20% from 7 days prior to stay, 50% from one day prior to stay, 100% on the day of stay or no-show.
*The rate of cancellation charge will be changed on special days.

Check-in time: 15:00 / Check-out time: 10:00 If we do not hear from you after 7:30 p.m., we will treat it as a cancellation.

Number of guest rooms / 15 rooms (Open-air bath room 11 rooms / Tsukimidai / Standard room 4 rooms)
Facilities / Two open-air baths (Iwato and Keikoku), an indoor bath (Kajika no yu), and two open-air baths (Take no Yu/Usagi and Tsuki)
Bar lounge, private dining room, parking

Notice of Construction Work 工事

Tonosawa Onsen has prospered as one of the seven hot springs in Hakone since the Edo period. At the end of the suspension bridge of the Hayakawa River, which flows through the ravine between Tanomine and Yusakayama, there is a one-house inn called "Yama no Chaya" surrounded by a deep bamboo grove. Rooms with elaborate views of nature in the four rich seasons. All of the baths, including the atmospheric open-air bath, are filled with hot water from a private source, and the colors of the four seasons spread out on the plates of carefully selected kaiseki cuisine. The murmuring of the clear stream and the seasonal breeze blowing through the bamboo grove. Enjoy a quiet time while admiring the bright moon floating in the mountains.

All rooms will be non-smoking from September 2023


Fresh seafood from Sagami bay &Izu Islands, Black Wagyu beef from Kanto region and fresh vegetables from Odawara and Isehara. The chef will prepare a monthly menu that changes with the month.

About Cuisine
Guest roomのイメージ

Guest room

There are a total of 15 guest rooms of 12 types, all of which are tastefully decorated. A number of rooms are equipped with an open-air bath that pours its own spring water into the bathtub.

Guest room


The private spring water pumped up from 300 meters below ground on the premises is poured into the bathtubs of the four baths and the open-air guest room baths that are the pride of the inn.

About Onsen

News from Tonosawa

Hakone-Yumoto and Tanosawa Onsen are surrounded by magnificent nature and the romance of history. We will send you notice regarding Yama no Chaya, as well as seasonal topics of Hakone-Yumoto.