Asakuchi Onsen Okayama
- Location
- Asakuchi, Okayama, Japan
- Water type
- sodium chloride
- Temperature
- 38 °C
- pH
- 7.3
Water profile
Soothing — neither hot nor cold, perfect balance.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Asakuchi Onsen Okayama is a natural hot spring in Asakuchi, a city in southwestern Okayama Prefecture, Japan, formed by the merger of several municipalities on the southern coast of the Kibi Plain, known for the Ushimado area's beautiful Seto Inland Sea coastline with its olive groves and Mediterranean-like scenery, and for the Shizutani School — founded in 1670 as one of Japan's first public schools for commoners, now a UNESCO Memory of the World site. The naturally chloride-sodium spring waters here carry the saline mineral character of the Seto Inland Sea coastal geothermal zone, valued for their warming, skin-softening, and circulatory properties, providing a restorative thermal soak near one of Japan's most historically important educational heritage sites. Combining the Seto Inland Sea's Mediterranean-like coastal scenery, the UNESCO heritage of Japan's pioneering public school, and the restorative wellness of natural coastal saline hot spring bathing, Asakuchi Onsen offers a historically layered and scenically beautiful Okayama thermal experience.