Iya Kazurabashi Onsen
Miyoshi, Japan
- Location
- Miyoshi, Japan
- Water type
- sodium chloride
- Temperature
- 41 °C
- pH
- 7.2
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.
ChlorurePotassiumMagnésiumSodium
Iya Kazurabashi Onsen is a remarkable hot spring resort in Miyoshi city, Tokushima Prefecture, situated in the remote Iya Valley — one of Japan's three hidden mountain retreats. The chloride-rich thermal waters provide deep warmth and skin-toning benefits, perfectly complementing the restorative atmosphere of this ancient valley known for its steep gorges, vine bridges, and thatched farmhouses. A soak here after crossing the famous Kazurabashi vine suspension bridge over the Iya River is considered a quintessential Shikoku highland experience.
Insider tip — Stay well hydrated before and after your bath in the chloride water at 41°C in Miyoshi.
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: Décembre|Janvier|Février.