Kōfu Onsen

Kofu Onsen rises in Kofu City, the capital of Yamanashi Prefecture, a basin city surrounded by some of Japan's most iconic volcanic and alpine landmarks—Mt. Fuji to the south, the Southern Alps to the west, and the Yatsugatake volcanic range to the north—creating a thermal spring in a setting of extraordinary geological diversity. The bicarbonate and carbonated waters offer an effervescent, skin-stimulating mineral soak, the natural CO2 adding a lively quality to waters drawn from the geological formations beneath the Kofu basin. Historically known as a castle town of the powerful Takeda clan and now as a center of Japan's wine country, Kofu combines cultural heritage with mineral spring bathing in one of Japan's most mountain-framed urban environments.