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Mouth Seven Sisters
Length 35 miles (56km)
Basin area 970km
The River Arun's source is a series of small streams (known locally as ghylls or gills) in the St Leonard's Forest area, to the east of Horsham. It flows through Horsham to the west and at Nowhurst is joined by North River (aka River Ockle), whose source is the heights of Leith Hill and Holmbury Hill in Surrey.
It flows through Arundel and past the castle, and into the English Channel at Littlehampton. Its main tributary is the western River Rother. The Arun local government district in West Sussex is named after it. The river runs for approximately 41 km (25 miles) from source to the sea, and is one of the faster flowing in England[. The river is tidal as far inland as Pallingham Quay, 18.25 miles upstream from Littlehampton.
Main fish Species
Like the Adur you can catch good Chub, Perch and Pike plus the usual staples Bream and Roach. Sea Trout are also know to run up this river and it is rumoured there are Brown Trout in the upper reaches. The tidal stretcjhes are good for Mullet specifically below Arundel.
For more about the Arun please visit the Rother and Arun Rivers Trust web site www.arrt.org.uk