Enclosed indoor bathing area
Site describes an indoor-style hinoki/aomori-hiba bath (ひのき風呂), though it is not available for day-use visitors (overnight guests only).
Dry heat sauna room
Likely refers to the official site's 源泉蒸し風呂 (natural spring steam bath) rather than a dedicated dry sauna; also mentioned in a separate review ('小さいサウナもあった').
Cold water plunge bath, typically used after sauna
Private onsen bath in guest rooms, for overnight guests only
Room equipment list itemizes toilet and sink only; no bath is listed. All bathing is in shared facilities (rotenburo/indoor/river bath).
Shared bathing area for all genders
Allows entry with visible tattoos
Unverified
A small, secluded ryokan tucked into a river gorge in Akita's mountains, with separate indoor baths and an open-air rotenburo (露天風呂) overlooking the Minase River canyon. In summer (July to September), a seasonal riverbed bath opens directly in the river itself, one of the more unusual soaking experiences you'll find. The spring is pure sulfur, reportedly emerging at 98 degrees, and the water runs completely clear.
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Last updated July 22, 2026