top of page

Soak in a hot bath with natural salts flowing direct from the source

At adex inn, our large onsen bath is fed by hot sulphur water directly from the source spring, without any filtering. As a result, the water is cloudy and dense with suspended sulphur, providing a deeply soothing dose of natural bath salts. As the sulphur precipitates out, it settles on the bottom of the bath in onsen flowers, known as yunohana.

FREE 24-HOUR ACCESS TO

HOKKAIDO'S LARGEST ONSEN,

THE GRAND BATH IN TAKIMOTOKAN

Noboribetsu comes from the Ainu name, “Nupurupet”, meaning 'cloudy white river', and the healing powers of its hot springs have long been known to the Ainu people, leading to to establishment of Noboribetsu Onsen town over 160 years ago. Staying at adex inn includes our in-house onsen fed directly from a sulphate spring in Hell Valley,  as well as free access to The Grand Bath in Takimotokan, a value of ¥2,250. After check-out, you can enjoy a day in the onsen without charge.

The Grand Bath in Takimotokan
5 different source springs and 35 baths to choose from:
Sulphur Spring
Alum Spring
Ferrous Sulphate Spring
Salt Spring
Sodium Spring

bottom of page