Hosenbo Onsen
Seiyo, Ehime, Japan
- Location
- Seiyo, Ehime, Japan
- Water type
- sodium chloride
- Temperature
- 41 °C
- pH
- 7.3
Water profile
Thermicity
Sedative
LowHigh
Relaxing — deep, immediate muscle release.
Mineralisation
Restorative
LowHigh
Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Hosenbo Onsen, in Seiyo, Ehime, delivers sodium-chloride water at 41°C in an indoor bath, an outdoor rotenburo bath and a sauna, in the southwestern corner of Shikoku.
Insider tip — Hosenbo Onsen, the Buddhist temple spring, continues the ancient tradition of ji-no-yu temple bathing that spread hot spring culture across western Japan from the 8th century. Seiyo City is the gateway to the Shikoku Karst plateau, one of Japan's highest limestone tablelands where karst towers, sinkholes, and underground rivers create a striking highland landscape above the cedar forests of the Ehime interior.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 41 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.