Unohana Onsen Hagi no Yu
Nagai, Yamagata, Japan
- Location
- Nagai, Yamagata, Japan
- Water type
- sodium chloride
- Temperature
- 42 °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
Unohana Onsen Hagi no Yu is located in Nagai, Yamagata prefecture. Sodium-chloride water reaches 42°C, distributed between an indoor bath and an outdoor rotenburo, with a sauna available.
Insider tip — Unohana (deutzia blossom) and Hagi no Yu (bush clover spring) evoke the wildflowers of the Okitama basin where Nagai sits. The Hanagasa Festival rice flower dance nearby is one of Yamagata region most beloved summer celebrations, a perfect pairing with this local onsen.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 42 °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.