Isshin Sakura; Aira Onsen
Aira, Kagoshima, Japan
- Location
- Aira, Kagoshima, Japan
- Water type
- thermal, sodium chloride
- Temperature
- 40 °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
Isshin Sakura; Aira Onsen welcomes visitors in Aira, Kagoshima Prefecture. The sodium-chloride thermal water measures 40°C here. It offers an indoor bath, an outdoor bath (rotenburo) and a sauna.
Insider tip — 'Isshin Sakura; Aira Onsen' on the southern edge of Aira city, where the Aira Caldera rim descends toward Kagoshima Bay. 'Isshin' (一心) = whole-hearted single focus — invoking the focused renewal of the bath. Cherry blossoms flourish in Aira's mild volcanic climate along the caldera rim; the combination of sakura viewing and onsen soaking is one of Kagoshima's most cherished spring traditions.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features thermal & sodium chloride water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année.