The towing paths along the waterways provide excellent peaceful walking routes for short and long journeys, suitable for all abilities. Some of Britian's great long-distance footpaths track alongside canals and river navigations...
Basingstoke Canal Walk (33 miles / 53 km)
Cheshire Ring Canal Walk (98 miles / 158 km)
Cuckoo Way (46 miles / 74 km) follows the Chesterfield Canal
Derby Canal Ring (28 miles / 45 km) includes the Derby Canal
Grand Union Canal Walk (145 miles / 234 km)
Great Glen Way (73 miles / 117 km) follows the Caledonian Canal.
Itchen Way (31 miles / 50 km)
Jubilee Walkway (14 miles / 23 km) follows part of the tidal Thames.
Kennet and Avon Walk (84 miles / 135 km)
Medway Valley Walk (28 miles / 45 km) from Tonbridge to Rochester.
Lea Valley Walk (53 miles / 85 km)
Newry Canal Way (20 miles / 32 km)
Ouse Valley Way (142 miles / 229 km) Great Ouse, sea to source.
Oxford Canal Walk (83 miles / 133 km)
River Parrett Trail (50 miles / 80 km)
Royal Military Canal Path (27 miles / 43 km)
Salt and Sails Trail (20 miles / 32 km) follows the river Weaver
Severn Way (210 miles / 338 km) from source to sea.
Shakespeare's Avon Way (88 miles / 142km) sea to source.
Sussex Ouse Valley Way (42 miles / 68 km)
Thames Path (184 miles / 296 km)
Wey South Path (36 miles / 58 km) follows the Wey & Arun Canal.
Wye Valley Walk (138 miles / 222km) from source to sea.
Ordnance Survey maps show towpaths and other waterside routes. Your local branch of The Ramblers may be able to help and you can also find out about local walking opportunities from local authorities, tourist offices and the navigation authority responsible for the specific waterway you have in mind.
There's lots more information about long distance trails, along the waterways and elsewhere at The Long Distance Walkers' Association website.