篝火の湯 緑水亭かがりびのゆ みどりすいてい
Bathing days off change month to month and are posted on the inn's news page, so it's worth checking before visiting. Reception for day-use bathing closes at 14:00 even though the baths stay open until 15:00, and the schedule may also pause around Golden Week, Obon and the New Year holidays.
Day-use bathing is 1,500 yen for adults and 750 yen for children (age 4 through elementary school); a rental bath towel and a face towel are included, and no reservation is needed. On peak dates (for example Aug 8-9 and 11-16) the price rises to 1,800 yen for adults and 900 yen for children.
Uses natural hot spring water
Shared bathing area for all genders
Allows entry with visible tattoos
Welcomes children and families
Towels available to rent or borrow
Kagaribi no Yu Ryokusuitei sits on a hill above Akiu Onsen, reached by a steep road up from town. The inn draws its own hot spring, unusual for Akiu where most places share a common source, and the water feels soft on the skin. A large indoor bath, Ryokusui no Yu (緑水の湯), connects by a flight of stairs to a rock-lined open-air bath, Kagaribi no Yu (篝火の湯). Baths are separated by gender, with no private bookable bath, and there's also a sauna. After dark, bonfires are lit along the path down to the outdoor bath, the kagaribi that give the inn its name, and it's the detail guests come back for.
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Last updated August 5, 2026