Keisenso
旅館 螢川荘けいせんそう
Day Use
YesAdults ¥1,000, children (12 and under) ¥600. Private bath rental 60 min ¥3,000 (up to 2 adults + 1 child)
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
Restaurant or dining open to visitors (not just hotel meal plans)
Shower, wash stations, soap and shampoo provided
Towels available to rent or borrow
On-site or nearby parking available
Programs
About
Keisenso sits on Kawazoko Onsen (川底温泉), a spring in Kokonoe, Oita said to have been discovered around 1,100 years ago when the court scholar Sugawara no Michizane (菅原道真) passed through on his way into exile. The original facility was destroyed by flood damage and rebuilt entirely before reopening in 2024, with a rotenburo and sauna added as part of the new build. Indoor baths and a private rental bath (kashikiri, 貸切り湯) round out the bathing options. The inn is also a stop on the Kyushu 88 Hot Springs pilgrimage (九州八十八湯巡り, Kyushu Hachijuhachi-yu Meguri).
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Last updated June 25, 2026