Tomuraushi Onsen

Tomuraushi Onsen is located deep within the Daisetsuzan volcanic complex in central Hokkaido, a remote wilderness area sometimes called the roof of Hokkaido that requires a considerable journey through Japan's most expansive national park to reach, making accessibility itself part of the onsen's legendary character. The sulfurous thermal waters emerge from active volcanic fissures in the Daisetsuzan range, producing the richly mineralized, milky-white water and pungent volcanic aroma that define the most potent hot springs of the Japanese Alps. Soaking in Tomuraushi Onsen after traversing the surrounding alpine plateau, where volcanic peaks and sweeping tundra vistas stretch to the horizon, is a transformative experience that draws devoted onsen pilgrims and mountain adventurers alike to this celebrated Hokkaido backcountry spring.