Kamisaibara Onsen
- Location
- Kamisaibara, Okayama Prefecture, Japan, Japan
- Water type
- bicarbonate
- Temperature
- 40 °C
- pH
- 8
Water profile
Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Soft water — natural, classic buoyancy.
Kamisaibara Onsen is located in Maniwa City, Okayama Prefecture, in the Saibara valley of the northern Okayama highlands where the forested mountain landscape of the Chugoku interior creates a peaceful and secluded environment for hot spring bathing far from the urban centers of the Sanyo coast. The siliceous thermal waters here serve a quiet rural community in a part of Okayama Prefecture that preserves traditional agricultural and forestry culture alongside its natural hot spring resources, offering an unhurried and authentically local bathing experience in the cedar and hinoki cypress forests of the upper Asahi River watershed. These onsen represent the quieter, less-celebrated dimension of Okayama's hot spring heritage — a world of community bathing, forest scenery, and mineral spring wellness that contrasts with the more famous resort onsen of the region while maintaining an equally genuine connection to Japan's therapeutic bathing traditions.