Landmark

Box Tunnel

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Box Tunnel is a historic railway tunnel on the Great Western Main Line, designed by Isambard Kingdom Brunel and opened in 1841. Stretching nearly two miles, it was the longest railway tunnel in the world at its time. Visitors can view the tunnel's grand western portal from a public footpath, and train enthusiasts often gather to see high-speed trains emerge from the darkness. The tunnel's straight alignment and precise engineering make it a lasting icon of Victorian innovation.

Don't miss

  • View the grand western portal, a striking stone archway
  • Watch modern trains thunder through the historic tunnel
  • Walk the nearby footpath for a sense of the tunnel's scale

Tickets & tours

Ways to visit Box Tunnel

You can usually visit on your own. A tour is worth it for transport, a guide, or combining nearby sights into one day.

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