Oniiwa Onsen Ryozan
鬼岩温泉 了山おにいわおんせん りょうざん
A forest ryokan at Oniiwa Onsen with a private bath among rock formations
Day Use
YesBathing hours are weekdays only; weekend visits require a phone inquiry, and same-day maintenance can occasionally close the bath without notice.
Day-use bathing (weekdays only) is ¥1,320 for adults, ¥1,100 for school-age children and ¥880 for preschoolers, tax and service included.
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Sauna room of any kind
The garden sauna takes up to six people and can be booked per person or privately; overnight guests can only use it as a private booking.
Bathing Arrangements
A private bath you can reserve for yourself or your group
Day visitors can book the private bath, not only overnight guests
Private onsen bath in guest rooms, for overnight guests only
Shared bathing area for all genders
Policies & Services
Welcomes children and families
Children are welcome in the standard rooms, but kids around 12 and under are not accepted in the detached room, the room-onsen rooms or the special suites.
A restaurant or dining room open to visitors, not only meals for overnight guests
On-site or nearby parking available
Views
Mountains
River
ForestHighlights
Utaseyu
Jet BathAbout
Oniiwa Onsen Ryozan is a ryokan in the Gifu hills with both an indoor bath and an open-air bath drawing on the local hot spring, plus a separate private bath, Onikko-no-yu (おにっこの湯), built in among the area's namesake rock and bookable by phone for a day visit. A waterfall bath and a bubble bath sit alongside the plain soaking tubs, and a garden sauna for up to six, added in the winter of 2024, welcomes day visitors as well as overnight guests. Several room categories, including the detached room and the special suites, have their own onsen bath built in. The water itself is light and runs smooth on the skin. The building sits among forest and hills, with the Kani River running past and mountain views from some rooms, in wooded country protected as a quasi-national park. Local legend traces the spring's discovery to a wounded white heron once seen bathing in it. Dinner is a seasonal kaiseki course built around the river's ayu and the season's mushrooms, and the ryokan reads as an older, well-kept small inn better suited to people after good food and a good soak than the newest fittings.
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Last updated September 29, 2026