Kurotaki Onsen; Nozomi no Yu
Ōshū, Iwate, Japan
- Location
- Ōshū, Iwate, 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
Kurotaki Onsen / Nozomi no Yu, in Ōshū, Iwate Prefecture, has sodium-chloride water at 42°C. An indoor bath, an outdoor rotenburo, and a sauna are available on site.
Insider tip — Nozomi no Yu, the hope hot spring, serves a mountain community in southern Ōshū overlooking the Isawa valley where the ancient government fortress Isawa no Ki established Japanese administration over the Tohoku highlands in the 8th century. The Sannai-Maruyama Jomon site confirms that these river valleys were centres of civilisation over 5,000 years before samurai ever rode through the beech forest.
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.