Enfield Council

'The London Borough of Enfield is the northernmost of the Outer London boroughs. The borough lies within the Metropolitan Green Belt, and several of its 123 or more parks and open spaces are part of it. The ancient Enfield Chase, remnants of which still exist, occupied much of the area ... Apart from those open spaces, there are the two large reservoirs: The King George V and the William Girling collectively known as the Chingford Reservoirs situated alongside the River Lea in the east of the Borough. Covert Way is Enfield's only Local Nature Reserve.'

Wikipedia: Parks and Open Spaces in London

Green space and other parks  [Enfield Council]