The River Waveney runs between Norfolk and Suffolk, through some of Britain's fast-disappearing marshland. It is host to a delightful diversity of wildlife, and supports many traditional riverside activities, including fishing, eel-catching, and reed-cutting. Throughout last year "Horizon"'s cameras followed the scientists, naturalists, farmers, historians and conservationists whose interests often conflict as they work to investigate, exploit or protect one of nature's resources.