Seikan Tunnel Tappi inclined passage line, called Mogura (mole) train
The shortest private railroad in the world, “Seikan Tunnel Tappi inclined passage line, called Mogura (mole) train” was constructed for moving laborers or transporting shortage through the Seikan Tunnel project. It is connected to the Honsyu side, Tappi-fixed-point (Tappi undersea station).
This train goes through the inclined passage 14 degree and leads you to “the world of 140 m below the surface of the sea” in only 9minutes.