The path of the river Lee: from its source to the Thames

The river Lee's source at Leagrave Common, north of Luton Photograph: Graham Turner

Swans near East Hyde, Bedfordshire Photograph: Graham Turner

Hartham Weir, Hertfordshire Photograph: Graham Turner

Boats moored at Rye Meads, Hertfordshire Photograph: Graham Turner

Ferry Lane locks, Tottenham in north London Photograph: Graham Turner

Pymmes Brook at Ferry Lane, Tottenham Photograph: Graham Turner

The Northern Outfall Sewer and towpath at Old Ford Lock, Bow in east London Photograph: Graham Turner

Old Ford Lock, the Northern Outfall Sewer, Bow Photograph: Graham Turner

Blocks of flats at Old Ford Lock, Bow Photograph: Graham Turner

Near the 2012 Olympic park construction site, Stratford Photograph: Graham Turner

Three Mills Lane, Bromley-by-Bow in east London Photograph: Graham Turner

Three Mills Lane, Bromley-by-Bow Photograph: Graham Turner

At Leamouth where the Lee joins the Thames, with the Trinity house lightship moored Photograph: Graham Turner