Yosakoi Onsen
よさこい温泉よさこいおんせん
Pacific-view rotenburo with a cave bath at a Kochi resort hotel
Day Use
YesAdults ¥1,000 / Elementary school children ¥500 / Preschool free. Cash only. Last entry 22:30.
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
Policies & Services
Allows entry with visible tattoos
Allowed if covered with 8cm×10cm cover seals (available for purchase at the facility).
Shower, wash stations, soap and shampoo provided
Towels to rent or borrow at the desk
On-site or nearby parking available
Views
SeaHighlights
Cave BathAbout
The baths at Mercure Kochi Tosa Resort & Spa sit high enough to look out over the Pacific, and the outdoor rotenburo uses natural spring water from the hotel's own source. There are two outdoor zones, Katsurahama and Muroto-misaki, which rotate between men and women each day; the Muroto-misaki side has a cave bath tucked into the rock. Indoor baths, a dry sauna, and a cold plunge round out the facilities. Day-use visitors are welcome in the evenings.
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Last updated September 19, 2026