Echigo Kawaguchi Onsen Kominka
Nagaoka, Niigata, Japan
- Location
- Nagaoka, 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
Echigo Kawaguchi Onsen Kominka is a hot spring bathhouse in Nagaoka, Niigata Prefecture, fed by sodium-chloride water at 41°C. Guests can use an indoor bath, an outdoor rotenburo bath and a sauna, in a setting typical of Japan's mountain onsen tradition.
Insider tip — Echigo (old name of Niigata) Kawaguchi area is known for its winter fireworks and the Shinano River. Kominka means old folk house — the onsen here is set in a traditional farmhouse building, contrasting rustic architecture with mineral warmth.
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.