Shimanto Onsen; Heiwa na Yu
Shimanto, Kochi, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Shimanto, Kochi, 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
Shimanto Onsen, known as Heiwa na Yu, stands in Shimanto, Kochi, near the river of the same name. The sodium-chloride water is heated to 41°C, with an indoor bath, a rotenburo and a sauna.
Insider tip — Heiwa na Yu, the peaceful spring, perfectly matches the tranquil spirit of Shimanto City beside the Shimanto River, Japan last major undammed river and designated the last clear stream of the country. The 196-kilometre Shimanto flows over smooth stone beds so transparent that the river bottom is visible at 7 metres depth, and the traditional teburi fishing boats that drift the river at dusk using hand-thrown nets have operated without change since the Jomon period.
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.