Kinugawa Onsen 鬼怒川温泉 — Tochigi
Reservable private bath
One big reservable bath in the main building, filled with 100% source water — free for guests, 40 minutes at a time, booked at the front desk after check-in.
The private bath works like this: you book it, it's yours. Door closed, steam up, nobody else's schedule anywhere near you. Take the late slot — night air on wet skin is the whole point.
Private-bath and water facts were checked against the property's official site and Japanese booking pages in November 2026. Room plans change — confirm the private bath is included in the plan you book.
More in Kinugawa Onsen
The CLUB9 premium rooms face the river and carry their own stone open-air baths; for a group there is the Yumemi-no-yu private bath wing with open-air baths and a jacuzzi bath.
Two reservable open-air baths, Touki and Kihada, at the grand old Kanaya-group hotel above the gorge — 45 minutes a session.
Two reservable baths: Kinu-no-yu with a semi-open-air bath, and Nikko-no-yu with a bedrock bath. Guests only, booked on the day, 90 minutes a session.