Sat, 10 Aug | Crystal Palace

Walk the Secret River Effra

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Walk the Secret River Effra

Time & Location

10 Aug 2019, 10:00 – 14:00
Crystal Palace, London SE19 2AZ, UK

About the Event

London was once a city awash with watercourses. Most of these streams and small rivers have long since disappeared underground and their void has been filled by myth, legend and an enduring yet uncertain fascination. The River Effra was one of these vanishings. In its earlier existence above ground it could only ever have been a modest tributary of the Thames, but through a vivid subterranean afterlife it has continued to impose itself on South London's development history and local mythology. Once fringed by willows and water meadows, it was the haunt of salmon, eels and herons until it fell victim to the unregulated development of suburban South London. The Victorian housebuilder and his tenants enthusiastically transformed it from a small river into a large sewer until finally in desperation it was covered up. Yet it still flows… and occasionally floods. The machinations of medieval landowners seeking to divert its course are uncovered along with some of the more absurd legends concerning Canute, Queen Elizabeth and others. For the Victorians it was a public health disaster in waiting and its ignominious disappearance underground into London's main drainage system in the 1860s was seen as a triumph of nineteenth-century civil engineering. Follow the ghost of this watercourse from Crystal Palace to Norwood, through Herne Hill.

Registration is Closed