The Seikan tunnel is a train tunnel that connects Tohoku in the main island of Honshu to Hokkaido to the north, going a impressive 240m below the sea level. The whole tunnel is over 50km in length and was quite a feat of engineering when it was constructed over 40 years ago under the TsugaruContinue reading “Going underground in Japan: Exploring the Seikan Tunnel Museum from Hokkaido to Honshu”
Super Cheap Japan 
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