Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Soft water — natural, classic buoyancy.
Gero Onsen, located in Gero, Gifu, Japan, is one of the three most famous onsen in Japan. The water type of Gero Onsen is bicarbonate, although the exact temperature of the spring is currently unknown. As a popular onsen destination, Gero Onsen offers various bathing facilities, including traditional inns, and is part of the approximately 3,000 onsen establishments in Japan that use naturally hot water from geothermally heated springs.