Yoshoyama Onsen
Asakuchi, Okayama, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Asakuchi, Okayama, 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
Yoshoyama Onsen, located in Asakuchi, Okayama Prefecture, has sodium-chloride water at 41°C. The facility offers an indoor bath, an outdoor rotenburo, and a sauna.
Insider tip — Yoshoyama Onsen serves Asakuchi City facing Kasaoka Bay on the Seto Inland Sea, where the Kasaoka Islands cluster in the clear sheltered waters are accessible by ferry for day trips. Okayama Prefecture is the sunshine capital of Japan, receiving more days of sunshine than almost anywhere else in the country — the Seto Inland Sea climate that shelters between Honshu and Shikoku creates this remarkably benign microclimate.
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.