Backpackers Sankou Guesthouse
民泊バック・パッカーズ山肴みんぱくバックパッカーズさんこう
Day Use
YesIrregular holidays
Adults ¥700, Children ¥350
Bathing & Water
Open-air outdoor bath
River open-air bath at nearby Manganji Onsen (日本一恥ずかしい露天風呂)
Enclosed indoor bathing area
Indoor baths at Manganji Onsen hall, 3-minute walk, free for guests
Uses natural hot spring water
Guests access the adjacent Manganji Onsen communal baths (free ticket from owner or ¥200 entry)
Capabilities
Shared bathing area for all genders
Policies & Services
Shower, wash stations, soap and shampoo provided
Guests must bring their own soap and towels to the communal bath
On-site or nearby parking available
Views
RiverAbout
A no-frills guesthouse in the Manganji Onsen (満願寺温泉, Manganji Onsen) area of Minamioguni. Bathing is at the adjacent communal hot spring facilities, a short walk away: an indoor onsen hall and a riverbank open-air bath known locally as Japan's most exposed rotenburo (日本一恥ずかしい露天風呂, Nihon-ichi hazukashii rotenburo). Guests typically receive a free bathing pass from the owner for the indoor baths. The place has the feel of a well-worn travelers' lodge, and the owner's welcoming manner is a big part of what keeps guests coming back.
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Last updated June 25, 2026