Dogo Onsen

Japan's largest hot spring resort in Beppu, Oita Prefecture. Boasts the highest number of spring sources and water output in Japan. Famous for the 'Hell Tour' visiting seven unique hot springs including Chi-no-Ike Jigoku and Onisshizaka Jigoku. Known for diverse water types including sulfur, carbonated, and mud baths. Attracts over 8 million visitors annually.

One of Japan's oldest hot springs, mentioned in the ancient chronicle Nihon Shoki. The main bathhouse is a designated Important Cultural Property, famous as the setting of Natsume Soseki's 'Botchan.' It is also said to have inspired the bathhouse in Studio Ghibli's 'Spirited Away.'

One of Japan's oldest hot springs in Matsuyama, Ehime Prefecture. The main building, constructed in 1894, is a nationally important cultural property and the setting of Natsume Soseki's 'Botchan.' Said to have inspired the bathhouse in Miyazaki's 'Spirited Away,' it attracts visitors from around the world.

One of Japan's oldest hot springs, the setting of Soseki Natsume's 'Botchan.' The Meiji-era main building is an Important Cultural Property, said to have inspired the bathhouse in 'Spirited Away.'

A hot spring city boasting the highest volume of spring water in Japan. Known for its 'Beppu Hatto' — eight distinct onsen areas — and 'Jigoku Meguri' (Hell Tour), the city has roughly 2,300 individual springs. Diverse tourism experiences leverage these thermal resources in creative ways.

One of Japan's 'Three Great Hot Springs' in Gunma Prefecture. Roughly 4,000 liters of hot spring water gush per minute from the Yubatake (hot water field), and unique bathing customs include yumomi (water stirring) shows. It consistently ranks among Japan's most popular onsen destinations.

Hokkaido's premier hot spring resort, nicknamed the 'Department Store of Onsen' for its nine different spring types. The Jigokudani (Hell Valley) with rising steam and sulfur scents conveys nature's overwhelming power. Welcoming about three million visitors annually, it excels at hosting international tourists.