Gero Onsen Gifu Osarayu
- Location
- Gero, Japan
- Water type
- calcium-rich
- Temperature
- 41 °C
- pH
- 6.8
Water profile
Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Soft water — natural, classic buoyancy.
Gero Onsen Gifu Osarayu is part of Japan's most celebrated inland hot spring destination in Gero City, Gifu Prefecture, historically ranked among Japan's top three great onsen alongside Arima and Kusatsu since the Edo period and praised by the 10th-century poet Kisen Hoshi. The calcium-rich 'bijin no yu' beauty water springs flow abundantly at around 84°C from multiple sources throughout the city, revered for leaving skin silky smooth, relieving rheumatism, and restoring nervous system equilibrium. Surrounded by the forested peaks of the Hida mountains and served by ryokan inns where guests can enjoy rotenburo open-air baths above the rushing Hida River, Gero represents Japan's quintessential hot spring destination at its most magnificent.