Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Fukusuke Onsen is a bathhouse in Kagoshima, in the eponymous prefecture in southern Japan. Its sulfurous water reaches 44°C and feeds an indoor bath and an outdoor rotenburo, with a sauna.
Insider tip — Fukusuke is a lucky-cat name evoking good fortune and prosperity. The Kagoshima volcanic system delivers intensely sulfurous water to this city sento — locals credit the waters with the city's famously low rate of skin ailments.