Ginzandaira Onsen; Shirogane no Yu
Uonuma, Niigata, Japan
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- 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
Ginzandaira Onsen Shirogane no Yu, in Uonuma, Niigata Prefecture, heats sodium-chloride water to 41°C. The site includes an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Shirogane no Yu, the white silver spring of Ginzandaira Silver Mountain Plateau, serves the interior Uonuma wilderness near the Mikuni Pass where the Uono River headwaters feed the Koshihikari rice paddies of the famous yukiguni snow country below. The deep mountain snowpack that gives Uonuma Koshihikari its extraordinary sweetness accumulates on these high plateaus through eight months of winter before melting into the spring irrigation flows that determine the flavour of Japan finest table rice.
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.