Nagiso Onsen

Nagiso Onsen is situated in Nagiso Town, Nagano Prefecture, in the heart of the Kiso Valley — the historic Nakasendo route that connected Kyoto to Edo through the mountains of central Honshu, one of Japan's two great feudal highways — where the Agematsu and Tsumago post towns preserve some of the country's most intact examples of Edo-period highway architecture and hospitality culture. The siliceous thermal waters here complement one of Japan's most historically evocative landscapes, where the cedar-lined trails of the Nakasendo pass through post towns whose restored streetscapes of dark wooden buildings, traditional inns, and administrative facilities have been designated Important Preservation Districts for Historic Buildings. Bathing at Nagiso Onsen allows visitors to restore body and spirit after walking the Kiso Valley's famous Nakasendo trails between the beautifully preserved post towns of Magome and Tsumago, combining thermal wellness with immersion in Japan's most perfectly preserved feudal highway heritage.