Plans to restore a river in Norfolk have been shown to the public.
The Environment Agency, the Norfolk Rivers Internal Drainage Board, and Natural England are working on a strategy to clean up the River Nar.
They will be helped by consultants, the River Restoration Centre, to tackle years of neglect from its source at Mileham to King's Lynn where it ends .
The aim is to return the Nar to a more natural shape without compromising flood protection.
Environment Agency technical officer, Sue Chambers, said: "The River Nar was given Site of Special Scientific Interest (SSSI) status in 1992 because of its rare combination of the characteristics of a southern chalk river and those of a fenland river.
"Over the generations there have been many physical changes which have led to the deterioration of the river."
Tony Goodwin, Engineer to Norfolk Rivers Internal Drainage Board, said: "The development of the River Restoration Plan for the whole river is an important step towards the development of a dynamic river, without compromising flood protection."
A meeting at Narborough Village Hall on Tuesday asked the public for their ideas about how to improve the river and factors which might affect the plans.