Great Seto Bridge, Setonaikai National Park

The Great Seto Bridge or Seto Ohashi Bridge is a series of double deck bridges connecting Okayama and Kagawa prefectures in Japan across a series of five small islands in the Seto Inland Sea. Built over the period 1978–88, it is one of the three routes of the Honshū–Shikoku Bridge Project connecting Honshū and Shikoku islands and the only one to carry rail traffic. The total length is 13.1 kilometers, and the longest span, the Minami Bisan-Seto Bridge, is 1,100 m. ()