The route runs some 48 miles (77 km). The entire route can be walked in three to five days.
The route
The route follows some of the course of the River Usk and runs from a start point at Caerleon, not far upstream from the rivermouth at Uskmouth, south of Newport, up the river valley, with interesting detours, to Brecon in the north.
The route is waymarked using a symbol of an otter's head, an animal that any walker may well see on the river. A guidebook for the route is available from bookshops.