Free-flow from source
Ogan Onsen
A sodium-calcium chloride spring that gushes from 1,200 m underground and boasts one of the highest calcium contents in Japan. Originating from "ancient seawater" trapped millions of years ago, it is offered as 100% free-flowing natural spring water with no added water. Its rich minerals cling to the skin and deliver outstanding heat-retaining and moisturizing effects. You can fully enjoy this rare, famous bath that lets you feel the breath of the Earth in a spacious bathtub.