Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Jigenji Onsen, in the city of Kagoshima, offers sulfurous water heated to 44°C. An indoor bath, an outdoor rotenburo bath and a sauna round out this urban bathhouse.
Insider tip — Jigenji Onsen at the famous Zen temple of Kagoshima City sits in the shadow of Sakurajima, the active stratovolcano that has erupted hundreds of times per year and deposited so much ash on the city that locals keep ash umbrellas beside their rain umbrellas. The Jigenji Temple was founded in the 14th century and became the spiritual centre of the Satsuma samurai tradition, whose followers dismantled the Tokugawa shogunate in 1868 and launched Japan's transformation into a modern nation.