Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
Immerse yourself in the natural beauty of Semboku, Akita, Japan at Nyuta Onsen Tsuru-no-Yu. This sulfurous thermal spring is one of the oldest and most revered onsen (hot springs) in the region. Rich in minerals, the water is appreciated for the softness it leaves on the skin, within a long thermal tradition. Experience the unique blend of nature and relaxation.
Insider tip — Nyuta Onsen Tsuru-no-Yu is one of Tohoku's most celebrated rustic onsen, famous for its milky white sulfurous water pouring into log-edged outdoor baths surrounded by beech forest in Akita Prefecture. Guests stay in thatch-roofed kura lodges and bathe under stars in mixed-gender rotenburo that have barely changed since the Edo period. In winter, snowfall on the surrounding mountains creates a magical landscape accessible only by shuttle from Tazawako.