Kazashi Onsen
Asakuchi, Okayama, Japan
- Location
- Asakuchi, Okayama, Japan
- Water type
- iron-rich
- Temperature
- 38 °C
- pH
- 6.3
Water profile
Thermicity
Neutral
LowHigh
Soothing — neither hot nor cold, perfect balance.
Mineralisation
Bio-active
LowHigh
Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
FerBicarbonatesManganèse
Kazashi Onsen is a hot-spring bath in Asakuchi, Okayama Prefecture, in western Japan. The iron-rich water emerges at 38°C, feeding an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Kazashi Onsen taps iron-rich waters along the Seto Inland Sea coast of Okayama, where the mild Setouchi climate encourages year-round bathing. The amber mineral water is prized locally for warming the body and easing fatigue from fishing and agriculture. The facility retains a deeply local character, with few concessions to tourism. Pairing a soak here with a visit to a nearby sake brewery makes for a quintessentially Okayama afternoon.
Nearby
Frequently asked questions
How hot is the water?
The water is neutral here, around 38 °C — a perfect balance, neither too hot nor too cold.
What type of water is found here?
This spot features iron-rich water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).