Linked from
The 15 pages that link to Channel Tunnel, each with the reason it gives.
English ChannelRelated: It provides a fixed transport link beneath the Channel.
Great BritainRelated: It gives Great Britain a fixed rail connection to continental Europe.
CalaisRelated: The tunnel’s continental approach connects through the Calais area.
Strait of DoverRelated: It provides a fixed transport link beneath the waters of the strait.