UPSC CSE Prelims 2007
The Strait of Dover is the narrowest section of the English Channel, geographically separating southern England (United Kingdom) from northern France. The Channel Tunnel, also known as the Eurotunnel, is an underwater rail link that passes beneath this strait. Operational since 1994, it connects Folkestone in England with Coquelles near Calais in France, thereby establishing a direct connection between the two countries.