Akayu Onsen

Historical thermal spa heritage of Akayu Onsen in Nanyo, Yamagata Prefecture, continuing from the Edo period. Developed along the Ushu Kaido highway, townhouse architecture from the early Showa period is relatively well-preserved. Strong connection to local sake industry exemplifies fusion of hot springs with regional commerce. It is one of few onsen communities maintaining traditional human relationships and local culture characteristic of hot spring districts.

A Taisho-era romantic hot spring town in Obanazawa, Yamagata Prefecture. Wooden ryokan from the Taisho and early Showa periods line both banks of the Ginzan River, and the evening gaslit scenery earns the title 'Japan's most romantic hot spring town.' Famous as a filming location for NHK drama 'Oshin,' the winter snow scene is fantastically beautiful.

A hot spring resort in Obanazawa, Yamagata Prefecture, preserving Taisho-era architecture. Ryokan lining the Ginzan River create a distinctive landscape illuminated by gas lamps. Once thriving as a silver mining town, its structures are now protected as important cultural properties. Particularly enchanting in snow season, it has inspired numerous artworks.

A hot spring resort in Fujikawaguchiko, Yamanashi Prefecture, positioned on Mount Fuji's northern slope with views of the mountain across the lake. Each season offers distinct vistas—spring greenery, summer blue, autumn foliage, and winter snow—attracting many visitors. Excellent views from onsen inns make the experience of contemplating Mount Fuji from outdoor baths highly valued.

A small hot spring resort in Yamanouchi, Nagano Prefecture. Featuring approximately 80 traditional inns, it is known for its unique 'yumeguri' tradition where guests bathe in nine public bathhouses. Renowned for its old-fashioned charm and rustic atmosphere, it attracts many backpackers and younger tourists seeking an authentic onsen experience.

A collection of hot spring resorts on the Noto Peninsula, Ishikawa Prefecture, including Wakaura Onsen and Wajima Onsen. Featuring open-air baths with views of the Japan Sea, tourism increasingly combines hot spring bathing with agricultural experiences and home-stay culture. Attracting approximately 500,000 visitors annually, it functions as an important regional tourism industry.