The barrel, rock, cut-stone, and hinoki baths take day-use bathers anytime, no reservation needed, but the five room-attached hinoki baths take phone reservations only, with reception between 12:00 and 17:00, and that window can shift around overnight bookings.
Barrel, rock, and cut-stone baths run 1,200 yen for 50 minutes and are open around the clock; hinoki baths are 1,600 yen for 50 minutes. The five room-attached hinoki baths cost 2,000 yen for 60 minutes or 5,000 yen for 120 minutes, reservation required. Afterward, the jigoku-mushi steam kiln is free for 90 minutes for day-use bathers, free for overnight guests, or 700 yen per person otherwise.
Uses natural hot spring water
Enclosed indoor bathing area
Private bath available for day-use visitors or hotel guests to reserve
Private onsen bath in guest rooms, for overnight guests only
Five named rooms (あざみ・えびね・さぎ草・ひごたい・福寿草) are hinoki baths attached to the guest room; a 2026 review confirms staying in a room with the bath en suite.
Allows entry with visible tattoos
Unverified
Welcomes children and families
Restaurant or dining open to visitors (not just hotel meal plans)
Self-catering lodge with no meal service; guests cook their own food at the on-site jigoku-mushi steam kiln.
On-site or nearby parking available
This self-catering inn near the Oita-Kumamoto border is built as a cluster of detached cottages, each housing its own private bath. There are more than a dozen baths across four styles: barrel, rock, cut-stone, and hinoki (檜) cypress, and several of the hinoki baths sit right inside the guest room. Two hot springs feed them through a coin-timer system that lets in fresh water with every soak. There's no meal service; guests cook for themselves at an on-site jigoku-mushi (地獄蒸し) steam kiln, using the geothermal steam for eggs, vegetables, and whatever they've brought. It's a quiet place, the kind where you wake up to birdsong.
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Last updated August 5, 2026