Miyanojo Okunai Onsen Pool
Satsuma, Kagoshima, Japan
- Location
- Satsuma, Kagoshima, Japan
- Water type
- thermal, sodium chloride
- Temperature
- 39 °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
Miyanojo Okunai Onsen Pool is found in Satsuma, Kagoshima Prefecture. This sodium-chloride hot spring reaches around 39°C and offers an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — 'Miyanojo Okunai Onsen Pool' (宮之城屋内温泉プール — Miyanojo indoor thermal pool) in Satsuma-cho. This indoor thermal swimming pool represents the Japanese tradition of swimming in natural hot spring water — combining the benefits of swimming exercise with onsen mineral richness. Miyanojo was the main town of the ancient Satsuma domain heartland; its indoor onsen pool serves school groups, elderly residents, and families year-round regardless of the typhoon-prone Kagoshima weather.
Nearby
Frequently asked questions
How hot is the water?
The water runs quite hot here, around 39 °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.