Japan 's Shimanami Kaido is a spectacular 60-kilometer road and bridge network . The whole route has cycle lanes and offers views of the Seto Inland Sea National Park . Advertisement - Continue Reading Below 2 )
Japan 's Shimanami Kaido is a spectacular 60-kilometer road and bridge network . The whole route has cycle lanes and offers views of the Seto Inland Sea National Park . Cyclists cross the 4,045-meter Kurushima Bridge , the world 's longest suspension bridge .