第12回しまなみ海道ウルトラウォーキング2026

The Seto Inland Sea is the focus: a course along the Shimanami Kaido, featuring its beautiful coastal light and a refreshing sea breeze. The 12th Shimanami Kaido Ultra Walking 2026 is in its 12th year, emphasizing pure ultra-distance walking over a casual fun run. Expect extended time on your feet, with the sea nearby and the route following the Shimanami Kaido. Participants are typically ultra-walkers who value steady pacing, quiet perseverance, and the understanding that a scenic route can still be demanding.