RSPB Stour Estuary is a nature reserve managed by the Royal Society for the Protection of Birds.
The Stour valley has been portrayed as a working river by John Constable, Thomas Gainsborough and Paul Nash.
The River Stour Trust, a waterway restoration group, was set up in 1968 and has restored the Gasworks Cut and the 19th century Granary Building, now used as the Trust's Headquarters.