Hawai Onsen
- Location
- Hawai, Tottori Prefecture, 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.
Hawai Onsen — its playful name a legacy of Meiji-era wordplay rather than any Pacific geography — is a small onsen village strung along the shores of Lake Tohono in Tottori Prefecture, on the San'in coast of western Honshu. The lake setting gives this onsen district an unusually serene quality: ryokan inns face the water, and the reflections of the surrounding hills shift slowly through the day, creating the unhurried atmosphere for which Hawai Onsen is quietly celebrated.
The sodium-chloride spring at 41 °C, with a neutral pH of 7.3, produces water with a characteristic warmth that lingers on the skin well after bathing — a property known in Japan as "yumochi," or the retention of heat. The slightly saline quality of the water, typical of coastal volcanic geology, lends each soak a subtle mineral depth. The calm lakeside location and the understated elegance of its traditional inns make Hawai Onsen one of Tottori's most distinctive bathing destinations.