Oyu Onsen Kyodo Yokujo Yukika no Yu
Uonuma, Niigata, Japan
- Location
- Uonuma, Niigata, 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
Oyu Onsen Kyodo Yokujo Yukika no Yu, in Uonuma, Niigata, delivers sodium-chloride water at 41°C. An indoor bath, an outdoor rotenburo and a sauna are available.
Insider tip — Uonuma is famous for Koshihikari rice grown in snowmelt-fed paddies. The Oyu Onsen community bath here is a gathering point for rice farmers between seasons — simple, steaming, and deeply local.
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.