Standedge Tunnel, Marsden Portal
📍 MarsdenWest Yorkshire
Entrance to the UK's longest, highest and deepest canal tunnel, reached by a canal towpath walk.
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What’s free
Free to walk the towpath and see the tunnel entrance; boat trips are paid
About
Standedge canal tunnel was completed in 1811 and is the longest, oldest, highest and deepest canal tunnel in the UK, running under the Pennines to Diggle. A pleasant towpath walk of about 15 minutes from Marsden station brings you to the tunnel mouth at Tunnel End, where there is also the Admiral's Trail. Boat trips into the tunnel cost extra, but the towpath and portal are free to visit.
Opening times
- Towpath open any time. Coffee shop open on boat trip days
Times can change, so check with the venue before a special trip.
Good to know
Costs to know about: Boat trips paid (cashless)
Still free?
Checked by our editors on 13 Oct 2026.
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