The River Coquet is one of Northumberland's finest game fishing rivers, flowing approximately 56 miles (90 km) eastward from its upland source in the Cheviot Hills through varied terrain before emptying into the North Sea at Amble. With a drainage basin of 625 square kilometres, the river passes through some of England's most scenic countryside, including sections within Northumberland National Park. The Coquet is celebrated throughout the North East for its runs of Atlantic salmon and sea trout, as well as its wild brown trout fishing, and has long been managed by the Northumberland Anglers Federation (NAF), said to be one of the oldest angling federations in the UK. The river's character shifts dramatically from its upper reaches — fast, rocky, and intimate — to its lower tidal stretches near Warkworth and Amble, where the channel broadens toward the estuary. The Coquet is a freestone river fed by upland rainfall and moorland drainage, giving it the classic spate river character that defines much of Northumberland's game fishing.