Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Yutopia Usubetsu, in Usubetsu near Mori on Hokkaido, draws sulfurous water emerging at 43°C. The facility combines an indoor bath, an open-air rotenburo and a sauna, offering a quiet stop for relaxation on Japan's northern island.
Insider tip — Usubetsu Onsen Yutopia Usubetsu is set in Mori Town on the southern shore of Lake Uchiura (Funka Bay), in a volcanic zone shaped by the nearby Komaga-take stratovolcano in southern Hokkaido. The sulfurous geothermal waters are characteristic of the volcanic belt running along Hokkaido's Pacific coast. The facility name Yutopia evokes a hot spring utopia, fitting for a rural retreat with views of the bay and Oshima Peninsula. Arriving in autumn treats visitors to Hokkaido's spectacular foliage framing the volcanic shoreline.