Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Shiobara Onsen Akatsuki no Yu is a hot spring facility in Nasushiobara, Tochigi Prefecture. The sulfurous water emerges at 44°C, pH 6.5. It offers an indoor bath, an outdoor rotenburo bath and a sauna.
Insider tip — Akatsuki no Yu, the dawn hot spring, sits in the Shiobara Onsen gorge where the Hokkigawa River has carved a dramatic volcanic canyon through layers of Nasu andesite and tuff. Shiobara twenty-plus springs are strung along the gorge walls like beads, and the sulfurous waters have attracted aristocrats and poets since the 8th century — the Meiji novelist Ozaki Koyo set his masterpiece Demon Gold in these misty gorge inns.