Conversation so far:
when did the channel tunnel rail link open
Section 1 of the Channel Tunnel Rail Link, opened on 28 September 2003
how long is the channel tunnel rail link
Section 1 of the Channel Tunnel Rail Link is a 67-mile high-speed railway
what does the channel tunnel rail link connect
Section 1 of the Channel Tunnel Rail Link links London with the Channel Tunnel.

Question: how fast do the trains in the link run
Self-contained rewrite: how fast are the trains in the channel tunnel rail link