The Economic Times

This bullet train runs under the sea at 320 kmph: How Hayabusa Shinkansen makes it possible

Japans Hayabusa Shinkansen can reach speeds of up to 320 kmph while travelling through the Seikan Tunnel, one of the worlds longest undersea railway tunnels. Connecting Honshu with Hokkaido, the 53.85-km tunnel has 23.3 km of track beneath the sea. Heres what makes the high-speed train and its underwater journey remarkable.