Kawaguchi Onsen Ousanso
川口温泉 奥羽山荘
Pet-friendly inn in Akita with a drinkable cold plunge and sauna
Day Use
YesLast entry at 20:00. The free rest room is open 8:00 to 18:00.
Elementary school children 300 yen. An 11-ticket book is 5,000 yen.
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
Shared bathing area for all genders
Policies & Services
Shower, wash stations, soap and shampoo provided
About
Kawaguchi Onsen Ousanso is an inn at the foot of the Ou mountains where you can also stop in for a bath without staying (higaeri nyuyoku, 日帰り入浴). The men's and women's sides each have an indoor bath, an open-air bath, a dry sauna and a cold plunge. The cold plunge is the inn's calling card: the water is drinkable. The sauna is roomy and has a TV, and there are twelve washing stations. The bath water is natural hot spring water. The inn also takes guests with pets.
Loading map…
No reviews yet
Be the first to share your experience!
Last updated October 13, 2026