Shiraoi Onsen

Shiraoi Onsen flows with sulfate-rich thermal waters in Hokkaido, emerging from the volcanic geology of Japan's northernmost main island in a coastal area that is home to the Upopoy National Ainu Museum opened in 2020, a major cultural institution dedicated to preserving and celebrating the heritage of the Ainu people, Hokkaido's indigenous population who have maintained their own distinct relationship with the volcanic and natural resources of the island for thousands of years. The spring's sulfate mineral composition reflects the volcanic sulfate chemistry of the region, and within a long thermal tradition its naturally heated waters have offered warmth and respite to both the Japanese settlers and the Ainu communities of coastal Hokkaido whose lives have been defined by the physical demands of fishing, hunting, and life in one of Japan's most climatically demanding environments. Shiraoi Onsen's position near Japan's foremost Ainu cultural museum and its sulfate volcanic mineral waters together create a destination of unusual cultural and geothermal depth in the coastal landscape of southwestern Hokkaido.