Day Use
Yes¥1,300 adults weekday / ¥1,500 weekends; Etajima residents ¥800 weekday / ¥1,000 weekends; children (3+) ¥650 weekday / ¥750 weekends
Bathing & Water
Open-air outdoor bath
Enclosed indoor bathing area
Dry heat sauna room
Uses natural hot spring water
Capabilities
Private bath available for day-use visitors or hotel guests to reserve
Two private baths: Hoshinoyu (2F) and Uminoyu (3F); ¥2,200 for 50 min; reservation slots 15:30-22:50 and 6:00-8:10; lodging guests only
Shared bathing area for all genders
Policies & Services
Restaurant or dining open to visitors (not just hotel meal plans)
Shower, wash stations, soap and shampoo provided
Relaxation space for after bathing
On-site or nearby parking available
Views
SeaHighlights
Steam Sauna
Lukewarm BathPrograms
About
Etajima-so sits on the shore of Etajima island, with rooms looking out over the Seto Inland Sea. The baths use salt-spring kakenagashi (掛け流し), water flowing continuously from the source without heating, so it stays at its natural cool temperature. The bathhouse has an indoor bath, a semi-open-air rotenburo, and a steam sauna. Private baths (kashikiri, 貸切風呂) on the upper floors, reserved for overnight guests, have views of the sea. A lounge with a bar is open after bathing. The ryokan is a member of the Nihon Hito wo Mamoru Kai (日本秘湯を守る会), the Japan Secret Hot Spring Association, and was included in the 2025 Michelin Guide Hotel Selection.
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Last updated June 25, 2026