Fossil Spring Gokusen
TypeNatural Hot Spring
A private source, "Fossil Spring Gokusen," that naturally springs from 1,500m underground. This mineral-rich sodium chloride spring rises from strata tens of millions of years old and contains abundant metasilicic acid, a natural skin-beautifying ingredient, earning it a reputation as a beauty bath. With its high salt content and strong osmotic pressure, it leaves the skin moist and hydrated, and after bathing your body stays warm for a long time and cools down slowly, which is one of its proud strengths.

