Kosugi Onsen Toyama

Kosugi Onsen in Imizu city, Toyama Prefecture, occupies a coastal flatland district facing the Toyama Bay, one of Japan's deepest bays, whose cold, nutrient-rich waters support some of the finest seafood in the country, including the celebrated firefly squid that illuminate the bay's surface in spring with bioluminescent displays visible from the shore. The sodium-bicarbonate spring water provides gentle, skin-smoothing baths that ease the fatigue of fishing and agricultural life in this productive coastal plain backed by the dramatic Northern Alps, within a long thermal tradition. Bathing in Kosugi's mineral waters while feasting on the bay's extraordinary seafood represents a quintessential pleasures of Toyama's coastal onsen culture.