Aoidake Onsen
青井岳温泉あおいだけおんせん
Day Use
YesAdult weekday 700 yen, weekend/holiday 900 yen, special days 1000 yen. Morning/evening discount (07:00-10:00 and 19:00-22:00): weekday 600 yen, weekend 800 yen. Children (age 1 to elementary) 350/450/500 yen. Last entry 21:00.
Bathing & Water
Open-air outdoor bath
Enclosed indoor bathing area
Dry heat sauna room
Cold water plunge bath, typically used after sauna
Uses natural hot spring water
Capabilities
Private bath available for day-use visitors or hotel guests to reserve
Shared bathing area for all genders
Policies & Services
Allows entry with visible tattoos
Welcomes children and families
Restaurant or dining open to visitors (not just hotel meal plans)
Shower, wash stations, soap and shampoo provided
Towels available to rent or borrow
Relaxation space for after bathing
On-site or nearby parking available
Highlights
GanbanyokuPrograms
About
Aoidake Onsen (青井岳温泉) sits inside Aoidake Natural Park in southern Miyazaki. The spring water is soft and slightly salty, and bathers regularly note that skin feels noticeably smoother after a soak. The bath lineup includes a main indoor pool, a hot tub set at a higher temperature, a walking bath (歩行浴, hobuyoku), a neutral-temperature tub, a cold bath, and an open-air rotenburo (露天風呂) among the trees. Sauna rounds out the bathing floor. Upstairs, the THERMAL LOUNGE Yurukotto (ゆるこっと) has ganbanyoku (岩盤浴, heated-stone beds) and ondol beds, recliner seating, a manga and book library of about 10,000 volumes, and a free drink bar. Two restaurants are on site. A separate outdoor sauna, GRAN SAUNA MIYAZAKI, operates on the grounds and requires a reservation. The facility was fully renovated and reopened in December 2025 under new private management.
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