Walthamstow Wetlands is a fully operational 211 hectare Thames Water reservoir site which is the main source of water supply for 3.5 million people. Walthamstow Wetlands is also an internationally important nature reserve, providing home and shelter to a wide range of wildlife, from rare waterfowl to majestic birds of prey.

In October 2017, Walthamstow Wetlands opened to the wider public for the first time in 150 years. The nature reserve is fully accessible and admission is free of charge.

The opening of Walthamstow Wetlands has only been possible due to a partnership between Thames Water, landowner, London Borough of Waltham Forest, grant holder, and London Wildlife Trust, the conservation delivery partner. 

The wildlife conservation and industrial value of Walthamstow Wetlands is truly unique in London and the opening of the site now allows more people to access its natural and architectural heritage.

https://www.wildlondon.org.uk/walthamstow-wetlands-nature-reserve