It's hailed as a wonder of Britain's vast network of waterways - the longest canal tunnel in the UK. Three-and-a-quarter miles long and almost 200 metres underground, Standedge Tunnel, which links Oldham with West Yorkshire, forms part of the Huddersfield Narrow Canal and the wider national canal network.
Now watersports fans are being offered the chance to see the entire length of the tunnel canal from the inside like never before - by canoe.
The national waterways charity Canal & River Trust has announced the 'bucket list opportunity' to 'paddle under the Pennines'. READ MORE: 'People are sick of having things done to them without having any say' It will see guided tours by canoe for the first time through the tunnel, which runs between Marsden in West Yorkshire and Diggle in Oldham, Greater Manchester.
The canal, which took more than 17 years to dig by hand and was completed in 1811, is described as one of the seven wonders of Britain's waterways.
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