The Trans-Pennine Trail is a "green corridor" stretching from coast to coast across the industrial Pennines. It's a colossal endeavour: NCN 62, which forms the bulk of it, is 210 miles long, the great majority is traffic-free. Railway paths, canal towpaths, and valley trails mean there's virtually no hills to speak of, other than the unavoidable Pennine ridge itself. Some parts are more successful than others, and the many gravel or earth sections rule it out for road bikes. If you enjoy exploring industrial heritage and would like to discover more of the North of England, this is a fascinating ride.