Iwami Onsen Kiri no Yu
Ōnan, Shimane, Japan
Illustration photo — not a verified picture of this exact spot.
- Location
- Ōnan, Shimane, 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
Iwami Onsen Kiri no Yu is located in Ōnan, Shimane Prefecture, in the historic Iwami region. Sodium-chloride water emerges at 41°C, with an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — Ōnan town in the Chugoku Mountains of Shimane is one of the least-visited corners of Western Honshu — deep cedar forests, traditional ironworking (tatara-buki), and barely a tourist in sight. Kiri no Yu — mist bath — evokes the mountain fog of a genuinely remote onsen.
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.