River Lee Country Park

The River Lee Country Park is located in the Lee Valley Park and is managed by the Lee Valley Regional Park Authority. Covering 1,000 acres (400 ha) acres on either side of the River Lee Navigation between Waltham Abbey and Broxbourne. An area of lakes, watercourses, open spaces and three Sites of Special Scientific Interest (SSSI) linked by footpaths and cycle tracks.

More information on the Wikipedia page.