道後温泉Dogo Onsen
Dōgo Onsen (道後温泉) is a hot spring in the city of Matsuyama, Ehime Prefecture on the island of Shikoku, Japan. Dōgo Onsen is one of the oldest onsen hot springs in Japan, with a history stretching back over 1,000 years. The springs are mentioned in the Man'yōshū (written c. 759), and according to legend Prince Shōtoku (574–622) used to partake of the waters.