Bath Two Tunnels Circuit

Family underneth Tucking Mill viaduct which you cross along the Bath Two Tunnels, National Route 244

Route Details

  • From - To: River Avon, Central Bath circular
  • Distance: 13 miles
  • Terrain: Railway Path, minor road and towpath; Sealed surface but loose gravel on towpath
  • Access: Bath Spa Train Station
  • National Cycle Network: National Route 244, 24 and 4
  • Current closures /diversions on this route.

Route Description

The iconic Bath Two Tunnels route opened in April 2013 and this particular circular cycle route has been created by combining that route with parts of the Kennet & Avon Cycle Route and the Colliers Way to create a fantastic 13 mile walking and cycling link between Central Bath, Midford, Monkton Combe and beyond. 

The route takes you from the centre of historic Bath using National Route 244, National Route 24 and National Route 4, through two tunnels: the Devonshire Tunnel at Bloomfield and the Combe Down Tunnel at Combe Down, and over the spectacular Tucking Mill Viaduct and past the Dundas Aqueduct on the Kennet & Avon Canal, until you are back alongside the River Avon, closely following it back into Bath.

The Combe Down Tunnel, at an impressive 1672 metres, is just over one mile, and is the UK's and possibly Europe's longest cycle and walking tunnel. Travelling through the Combe Down Tunnel for the first time is an incredible experience - take in the extraordinary audio-visual installation, Passage by United Visual Artists. 

In contrast, the Devonshire Tunnel has a rather more traditional artwork: a Portrait Bench sits at the entrance of the Devonshire Tunnel. Find out more about the characters on this route and about the UK-wide Portrait Bench project.

You can start this circular route at any access points along the circuit. A recommended start point is either Bath Spa station or Oldfield Park station. Both are a short ride from the route, which can ridden in either direction. The route conveniently takes you past Wheelwrights Arms in Monkton Combe, or for a slight detour along National Route 24, the Hope and Anchor in Midford if you want to stop for a pub lunch. 


The two tunnels project was part of the Sustrans Connect 2 National Lottery funded project. It is one of the biggest of all the 84 projects across the UK. This project would not have become a reality without the incredibly dedicated Bath Two Tunnels group. You can get an idea of the scale of the project with this video from the opening event of the Bath Two Tunnels:


  • Sustrans and Bath and North East Somerset Council have produced a free map which shows the two tunnels greenway.
  • Visit Bath have produced a downloadable map.

Things to see and do

GPX download

This route is available as a gpx download that is compatible on all major gps devices.

Download: Bath Two Tunnels Circuit.gpx

Route Diversions /Closures

Somerset & Dorset Intersect Bridge Replacement is taking place between October and September 2016. Due to the nature of the activities there is a closure of the diagonal footpath in Linear Park which leads from King George's road to the bridge. During this time pedestrians and cyclists will be diverted via a short, fully signed, diversion route. This footpath closure will remain in place until the new footbridge has been installed and the approach footpaths have been re-instated. Read more at the National Rail website.

Towpath Code

To make sure everyone gets the most out of their time by the water, please ensure you follow the Towpath Code.

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Route sign image: 
Buy the map

Map covers the Severn & Thames area of the South West region of England.


The Bath Two Tunnels Circuit is a 13 mile circular route taking in the iconic Bath Two Tunnels. The route also uses National Route 24 and National Route 4, along the Kennet & Avon Canal back in to Central Bath. 

Please Note: Diversion on route, see below

13 miles