Tennen Onsen; Kaio
Imizu, Toyama, Japan
- Location
- Imizu, Toyama, Japan
- Water type
- sodium chloride
- Temperature
- 42 °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
Tennen Onsen Kaio is set in Imizu, Toyama Prefecture. The sodium-chloride water flows at 42°C, pH 7.3. Facilities include a covered bath, an outdoor rotenburo and a sauna.
Insider tip — In Imizu on the Toyama Bay coast where the legendary Kaichu-do (Sea Road) connects the city to the Tateyama mountain wall reflected in the bay, Kaio (sea king) onsen draws saline waters from the deep Toyama Bay sedimentary basin; the extraordinary mirage phenomenon seen here in spring — where mountain villages appear to float in the air above the bay — makes Imizu one of Japan's most otherworldly coastal settings.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 42 °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.