Bath Two Tunnels Circuit

The Bath Two Tunnels Circuit is a perfect day out for families. It’s an easy, circular walking and cycling route. On the Bath Two Tunnels Circuit you’ll see the UK’s longest cycling and walking tunnel, the spectacular Tucking Mill Viaduct and the Dundas Aqueduct.

The Devonshire Tunnel on the ‘Two Tunnels’ Circuit in Bath is open. The tunnel will remain open subject to continued low water levels through the spring and summer months - Sustrans staff and contractors will continue to visit and monitor the site.


The iconic Bath Two Tunnels Circuit is a 13-mile walking and cycling loop through beautiful green spaces.

It’s an ideal day out for families walking, wheeling or cycling.

The route takes you from the centre of historic Bath through two tunnels, over the spectacular Tucking Mill Viaduct.

It passes the Dundas Aqueduct on the Kennet & Avon Canal, until you are back alongside the River Avon, closely following it back into Bath.

You'll pass the Combe Down Tunnel which is an awe-inspiring sight.

It stands at an impressive 1,672 metres, is just over one mile and is the UK's longest cycling and walking tunnel.

Travelling through the Combe Down Tunnel for the first time is an incredible experience.

And it's heightened by the extraordinary audio-visual installation, ‘Passage’ by United Visual Artists.

A Portrait Bench sits at the entrance of the Devonshire Tunnel, so keep an eye out for it.

Sustrans Bath Two Tunnels Greenway Festival and Opening 2013

Accessing this route

You can start this circular route at any access point 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 be ridden in either direction.

The history of the route

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.


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Please note

We have taken all responsible steps to ensure that these routes are safe and achievable by people with a reasonable level of fitness.

However, all outdoor activities involve a degree of risk. To the extent permitted by law, Sustrans accepts no responsibility for any accidents or injury resulting from following these routes.

Walking and cycling routes change over time. Weather conditions may also affect path surfaces.

Please use your own judgement when using the routes based upon the weather and the ability, experience and confidence levels of those in your group.

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


Please help us protect this route

The Bath Two Tunnels Circuit is part of the National Cycle Network, cared for by Sustrans. Your donation today will help keep the Network safe and open for everyone to enjoy

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