Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Effortless float
LowHigh
Dense, salty water — you float without effort.
SodiumChloruresBrome
In a traditional onsen, bathers follow a revered cultural tradition that emphasizes relaxation, purification, and community. Guests typically disrobe and store personal belongings in a designated area, wearing provided towels and slippers. A serene atmosphere prevails as individuals bathe and socialize in a communal setting, often before or after a relaxing soak in the hot spring waters. Respect for fellow bathers is paramount, with quiet conversation and gentle behavior expected.
Insider tip — Sado Island was once Japan's largest gold-producing island and a place of imperial exile. The Hoyo Center at Hatano Onsen combines restorative bathing with island tranquility — a rare combination just a ferry ride from Niigata.