Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Soft water — natural, classic buoyancy.
Niseko Onsen Grand Hirafu draws sulfate-rich thermal waters from the volcanic geology of the Niseko Annupuri volcanic chain, in the ski resort that has become Japan's most internationally famous winter destination, attracting Australian, Singaporean, and North American skiers who discovered Hokkaido's legendary Japow (Japanese powder snow) — up to 15 meters of snowfall annually — and the unique combination of world-class powder skiing with authentic onsen soaking that makes Niseko uniquely compelling among global ski resorts. The volcanic geology driving Niseko's geothermal spring system is the same tectonic plate subduction that produces the Shikotsu-Tōya National Park's extraordinary caldera lakes and Usu volcano's dramatic eruption history just to the east. Après-ski in Niseko includes outdoor rotenburo bathing with steam rising above snow-covered cedar branches and Yōtei volcano's perfect cone glowing in winter sunset — an image that has made Niseko synonymous globally with the ideal fusion of powder skiing and Japanese hot spring culture.