Lee Valley White Water Centre is a white-water slalom centre in the Middle Lea Valley, in the Borough of Broxbourne, Hertfordshire. It was constructed to host the canoe slalom events of the London 2012 Olympic Games.

The River Lea is in the East of England and Greater London. It originates in Bedfordshire, in the Chiltern Hills, and flows southeast through Hertfordshire, along the Essex border and into Greater London, to meet the River Thames at Bow Creek. It is one of the largest rivers in London and the easternmost major tributary of the Thames.