Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
The Kazuno-shi Oyu Onsen Hoyo Center, including its Yutori bath, is located in Kazuno, Akita Prefecture. The sulfurous water emerges at 44°C, pH 6.5. An indoor bath, an outdoor rotenburo bath and a sauna are offered.
Insider tip — Kazuno-shi Oyu Onsen Hoyo Center draws from the famous Oyu hot spring zone in Akita, a region whose geothermal activity has been harnessed since prehistoric times, as evidenced by the nearby Oyu Stone Circle. The sulfurous water arrives at high temperature from volcanic vents beneath the Tohoku mountains. This public wellness center makes the spring accessible to all ages at modest cost. Winter visits are spectacular when snow accumulates on the outdoor bath edges against a backdrop of frozen Akita forest.