Yumoto Onsen Yamaguchi

Yumoto Onsen in Nagato, Yamaguchi Prefecture — also known as Nagato-Yumoto — is one of western Japan's oldest continuously operating hot spring resorts, with thermal spring use documented since the Nara period (710–794 CE) when imperial court officials traveled to these siliceous waters within a long thermal tradition. The onsen town sits along the Otani River in a narrow valley where traditional ryokan inns line the riverside, their wooden architecture reflected in the clear mountain stream creating a scene of classic Japanese spa town aesthetic. Yamaguchi's Yumoto Onsen has been a place of literary and artistic inspiration for centuries, associated with the haiku poet Matsuo Basho and other cultural figures who found renewal in its quiet riverside thermal waters.