The Kanmon Straits was the site of three historically ... The sea can be crossed by a toll expressway bridge, tunnel, Shinkansen, local train, ferry and, I was intrigued to learn, on foot.

KITA-KYUSHU--After a short countdown, an explosion ripped through the calm water in the Kanmon Straits between the main islands of Honshu and Kyushu. White splashes appeared on the surface ...