The River Nene is a significant lowland river flowing 105 miles through eastern England from its source at Arbury Hill in Northamptonshire to its tidal mouth at The Wash in the North Sea. It is a classic coarse fishing destination, navigable for 88 miles and tidal for 28 miles up to Dog-in-a-Doublet sluice near Peterborough. The river meanders through a predominantly flat fenland landscape, characterized by slower flows, productive margins, and a mix of rural and urban stretches, offering a diverse angling experience for match, specimen, and pleasure fishermen.