笛吹川温泉 坐忘ふえふきがわおんせん すわ忘
Open-air and cave baths at an 1891 Yamanashi ryokan
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
Private onsen bath in guest rooms, for overnight guests only
Shared bathing area for all genders
Welcomes children and families
Children permitted in select rooms only (Kinpo, Asahi, Kotokawa, Tsuzumikawa rooms)
Shower, wash stations, soap and shampoo provided
On-site or nearby parking available
A ryokan in Koshu, Yamanashi, that has been taking guests since around 1891. The bathing centers on a large open-air bath set among boulders and a cave bath (dokutsu-buro, 洞窟風呂) that predecessors hand-carved from the rock. Many rooms come with private outdoor baths. The water is smooth and soft on the skin. Men's and women's sections swap daily, so overnight guests get to soak in both. Dining follows a cha-kaiseki (茶懐石) style, with seasonal local ingredients.
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Last updated September 19, 2026