Kan no Jigoku Ryokan
칸노지고쿠 료칸 (寒の地獄旅館)
Century-old ryokan with 13-14°C mineral cold spring and 100°C+ wood-fired sauna
About this place
NotesA century-old ryokan in Kokonoe, Oita. The core experience is the extreme temperature contrast. Seeking the essence of onsen. SAUNA37 selected.
Practical notes
The cold spring is mixed-gender, so swimwear is mandatory and a yuami-gi bathing robe is not permitted. There is no swimwear rental, so bring your own (only a small number are sold on site). It runs year-round, not just in summer. After heavy rain in early July 2026 one of the cold-spring pools has reportedly been limited, so a phone check before visiting is safest.
Compiled from publicly available information and visitor reports. The rating shown is an editorial summary of the same, and does not mean we have visited every place in person. Prices and hours may change — please confirm with the venue before visiting.
Before you go
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Info updated: 2026-08
Details may differ from actual conditions.
What stands out
- +Extreme hot-cold contrast
- +Natural cold spring gushing 2 tons per minute (13-14°C)
- +Wood-fired sauna Dan-no-Jigoku at over 100°C
- +Extreme hot and cold contrast experience
- +Charm of a 100-year-old ryokan
Facility Details
Cold spring (13-14°C) discovered in Edo era (1849). 'Japan's best water bath'. 2,160L/min flow. SAUNA37 World Sauna Awards 2026.
Sauna
1Baths
1Mixed bathing. Swimsuit required (no rental). 2,160L/min flow
Special Facilities
1Warm up after sauna
Facility details are verified and updated regularly, but may differ from actual conditions. Please confirm with the venue before visiting.
Natural cold spring at 13-14C with 2 tons/min flow rate called Japan's best cold plunge
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Nearby (5)
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