Furumachi Onsen; Akaiwaso
Minami-Aizu, Fukushima, Japan
- Location
- Minami-Aizu, Fukushima, 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
Furumachi Onsen Akaiwaso, in Minami-Aizu, Fukushima prefecture, heats its sodium-chloride water to 41°C. An indoor bath, an outdoor rotenburo bath and a sauna are offered.
Insider tip — Akaiwaso, the red-rock inn, occupies the deep mountain valleys of southern Aizu where thatched farmhouses survive and Oshimizu buckwheat noodles are a local speciality. The old town of Minami-Aizu retains some of the most authentic rural landscapes in Tohoku, far from the bullet-train corridors.
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.