The Gangneung KTX bullet train line links Seoul to the port city of Gangneung across the north of the country, having opened in time to connect Seoul to the 2018 Winter Olympic venues in Pyeongchang. The line officially started service in December 2017, and you can search trains & book tickets online here
Construction of the line formed a key part of the Pyeongchang 2018 bid,
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