Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Tsuetate Onsen, also known as Kannon Iwa Onsen, is located in Oguni, Kumamoto Prefecture. Its sodium-chloride water reaches around 42°C, with an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — 'Kannon Iwa Onsen' at Tsuetate Onsen in Oguni-machi — one of Kyushu's most beloved historic hot spring towns, set in a deep gorge where the Tsuetate River has carved vertical tuff walls lined with ryokan. Tsuetate is famous for its spectacular Tanabata festival: streamers of thousands of paper strips dangle from the gorge walls, filling the air with colour. 'Kannon Iwa' (観音岩 — Kannon Bodhisattva Rock) is a cliff face in the gorge that resembles the merciful Kannon, from whose face the spring waters seem to emerge.