Aoshima Onsen
- Location
- Aoshima, Miyazaki (Kyushu), Japan
- Water type
- sodium chloride
- Temperature
- 41 °C
- pH
- 7.3
Water profile
Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Aoshima Onsen is located in Miyazaki City, Miyazaki Prefecture, near Aoshima — a small subtropical island famous for its extraordinary "devil's washboard" formations of naturally ridged sedimentary rock worn flat by wave action, and the ancient Aoshima Shrine nestled amid a dense grove of betel palms that evoke a tropical Southeast Asian atmosphere. The siliceous thermal waters here complement a coastal wellness experience in Japan's "Phoenix City," named for the rows of phoenix palm trees lining its boulevards, where subtropical climate, sandy beaches, and warm sea waters define a resort atmosphere unlike typical Japanese spa destinations. Miyazaki's combination of tropical coastal scenery, Japanese hot spring culture, and oceanic warmth creates a distinctive south Kyushu wellness identity.