South Pennine Ring
United Kingdom
The South Pennine Ring is an English canal ring which crosses the Pennines between Manchester and Huddersfield. It covers parts of five canals, and includes passage through the longest canal tunnel in Britain. It has only been possible to cruise it since 2002, when restoration of the Huddersfield Narrow Canal provided the return route across the Pennines.
Canal data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).