Sun 25 Feb 2024 Bath, Somerset, UK

Two Tunnels | Half Marathon

A truly special race that not only takes in many of Bath's beautiful attractions, but also has the longest underground section for each race distance in the UK!

  • Sun 25 Feb 2024
Brickfields Park, Bath

Half Marathon



Age 17 & over

  • 13.1 miles road running


Cutting right under the city of the Bath, the two tunnels offer a truly unique running experience. The Somerset & Dorset Railway closed in 1966 and until April 2013, the tunnels had been sealed and inaccessible. Thanks to the hard work and dedication of the Two Tunnels Group and Sustrans over a period of 7 years, the two tunnels now have a new lease of life as a shared use path. The first tunnel, the Devonshire Tunnel is 408m long and the second tunnel, Combe Down Tunnel is 1672m long. Both tunnels are well lit and well surfaced and have recently been converted into a shared use path for the enjoyment of runners, walkers and cyclists looking to make the most of the city whilst remaining on flatter ground. With an ultra marathon, 50km relay, marathon, 3 different half marathons, 2 different 10kms, 5km, 2km and 500m Colourburst races there are events for all the family, and if they are not taking part, bring your friends and family to cheer you on. Our start and finish is at Brickfields Park in the middle of the city which also has a children's play ground and is a great spot to sit and enjoy a picnic after the race.

This event is part of Two Tunnels.

Event details

  • All fitness levels
  • Event village
  • Families
  • Newcomers
  • Spectators


  • Bag storage
  • Park
  • Toilets


  • Distance markers
  • Marshals
  • Wave start


  • Carbon neutral
  • Carbon offset

What's included

  • Medal


  • Age 17 & over
  • Enter on day
  • Enter online

Other races at event

  • Sun 25 Feb
  • #1 of 5
Brickfields Park, Bath

500M Colourbust



All ages

  • 500 m road running
  • Sun 25 Feb
  • #2 of 5
Brickfields Park, Bath

2K Colourbust



All ages

  • 2 km road running
  • Sun 25 Feb
  • #3 of 5
Brickfields Park, Bath




Age 12 & over

  • 5 km road running
  • Sun 25 Feb
  • #4 of 5
Brickfields Park, Bath




Age 16 & over

  • 10 km road running