Aira-shi Onsen Center; Kusu no Yu
Aira, Kagoshima, Japan
Illustration photo — not a verified picture of this exact spot.
- 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
Aira-shi Onsen Center; Kusu no Yu is also located in Aira, Kagoshima Prefecture. The sodium-chloride thermal water reaches 40°C here. Indoor bath, outdoor bath (rotenburo) and sauna are available on site.
Insider tip — 'Kusu no Yu' (楠の湯 — camphor tree spring) at Aira-shi Onsen Center in northwestern Aira. The camphor tree (kusunoki) is one of Japan's most revered — Kusunoki Masashige is a legendary samurai hero, and ancient camphor trees guard countless Kagoshima shrines. This community onsen is named for the great camphor groves that once dominated this volcanic valley, where the Satsuma Domain's forests stretched to the caldera rim.
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.