Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Capabilities
Private bath available for day-use visitors or hotel guests to reserve
Private onsen bath in guest rooms, for overnight guests only
Shared bathing area for all genders
Policies & Services
Welcomes children and families
Restaurant or dining open to visitors (not just hotel meal plans)
On-site or nearby parking available
Views
ForestHighlights
Drinking SpringAbout
Mozumo is an adults-only ryokan in Hirayu Onsen where every room comes with a private open-air bath. There is no indoor bath; the whole experience is outdoor soaking, either from your own room or in the shared rotenburo (separate for men and women). The water comes from the inn's own spring, Yamanoyu (山の湯), piped in fresh and unrecirculated (kakenagashi). It is smooth on the skin and approved for drinking.
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Last updated June 23, 2026