Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
Satsuma no Tennen Onsen, also known as Chikurin Onsen, is located in Satsuma, Kagoshima Prefecture. Sodium-chloride water flows here around 40°C, with an indoor bath, an outdoor rotenburo and a sauna.
Insider tip — 'Chikurin Onsen' (竹林温泉 — bamboo grove spring) at Satsuma no Tennen Onsen in Satsuma-cho, Kagoshima. Ancient bamboo groves are one of the defining elements of the Satsuma landscape — their hollow culms were used for water conduits, construction, weapons, and crafts throughout the domain era. A hot spring shaded by bamboo creates one of Japan's most atmospheric bathing environments: the rustling of bamboo in the breeze, filtered green light, the sound of water. 'Satsuma no Tennen' (薩摩の天然) = Satsuma's natural spring — emphasising the geological authenticity of the waters.