The River Effra, running as a combined sewer beneath London, is one of many long-lost waterways; this project aims to bring it partially back to the surface. After separating the sewer from the river, the scheme plans to daylight the waterbody in parks and green spaces along its course towards the Thames. Where the river resurfaces, a new riverbed seamed by natural banks, vegetation and wetland fauna attracts both biodiversity as well as Londoners wanting to reconnect with nature. A particular focus is the redesign of Brockwell Park.