佐久山温泉 きみのゆ
佐久山温泉 きみのゆ
Day-use bathhouse in Otawara with private baths and a rock-bed sauna
Day Use
YesClosed December 31 and January 1.
Adult ¥680 (¥600 after 17:00), child ¥350; same price on weekends and holidays. Last entry 21:00 for the baths, 20:30 for ganbanyoku (岩盤浴).
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Sauna room of any kind
Cold water plunge bath, typically used after sauna
Bathing Arrangements
A private bath you can reserve for yourself or your group
Shared bathing area for all genders
No mixed bathing mentioned anywhere on the site or across five Google reviews; baths described as a standard large communal bath layout.
Policies & Services
Allows entry with visible tattoos
Unverified
A restaurant or dining room open to visitors, not only meals for overnight guests
Shower, wash stations, soap and shampoo provided
Towels to rent or borrow at the desk
Relaxation space for after bathing
On-site or nearby parking available
Highlights
Foot Bath
Electric Bath
Jet Bath
GanbanyokuAbout
Kiminoyu is a large day-use bathhouse in Otawara with an indoor bath, a semi-open-air rotenburo, a sauna and cold plunge, jet and electric baths, plus private baths, kashikiri (貸切風呂), that you can book by the hour. There's also a ganbanyoku (岩盤浴) rock-bed sauna, and a small cottage annex for overnight guests. The spring water is kept flowing fresh and feels smooth on the skin, the kind of thing regulars keep mentioning. Downstairs has an easygoing, local feel: a big dining hall, and a stand by the entrance where nearby farmers sell their vegetables.
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Last updated September 19, 2026