The Kanmon Straits, separating Honshu and Kyushu, is a

very busy waterway with as many as 700 small and large

ships a day passing through it.  There are a total of seven

ways to cross the straits such as the 1,068-meter-lomg

 “Kanmonkyo Bridge”, which is for motor vehicles only, the

“Shin-Kanmon Tunnel” for Shinkansen bullet trains, the

“Kanmon Pedestrian Tunnel”, which enables people to cross

on foot, the “ferries”, and the like.

Kanmonkyo bridge

The suspended bridge crossing the Kanmon Straits, a stretch
of water separating two of Japan’s four main islands.
On the Honshu side of the bridge is Shimonoseki and on the
Kyushu side is Kitakyushu–city.

Konamon Pedestrian tunnel
Only the place in the world !   You can cross the strait on foot.
The Kanmon Strait, separating Honshu and Kyushu, is a very 
beautiful and busy waterway with as many as 700 small and 
large ships a day passing through it.