Yumoto Sanuki Setoohashi Onsen

Yumoto Sanuki Setoohashi Onsen in Kagawa Prefecture celebrates its position at the threshold of two of Japan's great engineering achievements: the Seto-Ohashi Bridge, the 13-km road and rail crossing completed in 1988 that linked Honshu and Shikoku for the first time by fixed link, ending centuries of the island's relative isolation, and the ancient Sanuki province name that roots the spring in the deep historical identity of a Shikoku prefecture famous for its udon noodle culture and its position on the 88-temple Buddhist pilgrimage circuit. Simple alkaline waters provide the gentle, universally accessible mineral soak that grounds a spring celebrating both modern engineering connection and ancient pilgrimage tradition within the same geographic frame. Bathing at the Great Bridge Spring connects the traveler to both the ancient routes of Shikoku pilgrimage and the modern infrastructure that transformed the island's accessibility.