Kosudo Onsen; Hana no Yu Kan
Niigata, Niigata, Japan
- Location
- Niigata, 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
Kosudo Onsen, known as Hana no Yu Kan, is located in the city of Niigata. The sodium-chloride water emerges at 41°C and supplies an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — Hana no Yu Kan, the flower spring hall, serves the western suburbs of Niigata city where the Shinano and Agano rivers empty into the Japan Sea. Niigata produces Japan most acclaimed sake (Koshi no Kanbai, Kubota, Hakkaisan) and the mineral-rich saline spring pairs perfectly with a sake tasting tour of the local breweries.
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.