Fumoto Onsen; Yuaikan
Kumakogen, Ehime, Japan
- Location
- Kumakogen, Ehime, Japan
- Water type
- thermal, bicarbonate
- Temperature
- 39 °C
- pH
- 8
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Restorative
LowHigh
Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
In Kumakogen, Ehime Prefecture, Fumoto Onsen; Yuaikan offers bicarbonate thermal water at 39°C, pH 8. Indoor bath, open-air outdoor bath (rotenburo) and sauna make it a quiet spot to unwind among hills and forest.
Insider tip — 'Yuaikan' (warm embrace hall) at Fumoto Onsen at the foot of the Shikoku Karst highlands in Kumakogen-cho. This limestone plateau — one of Japan's largest — has a cool alpine quality at 1,000 m elevation, making the warm bicarbonate spring waters especially welcome after hiking the limestone meadows.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 39 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features thermal & bicarbonate water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.