Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Yu no Moto Family Onsen is located in Kagoshima, in the eponymous prefecture in Japan. Its sulfurous water is heated to 44°C and feeds an indoor bath and an outdoor rotenburo, with a sauna also available.
Insider tip — Yu no Moto Family Onsen is a neighbourhood volcanic hot spring facility in Kagoshima city, drawing the sulfurous waters that bubble up through the Sakurajima volcanic system beneath the city. The intense sulfur scent and high mineral content are hallmarks of genuine Kagoshima onsen. The family-oriented layout with shallow children's pools makes it accessible for intergenerational visits. The view of Sakurajima volcano across the bay, occasionally venting steam, creates a dramatic theatrical backdrop.