River Thames to the strong current of the river, but also other river users. Organised swimming events take place at various points generally upstream of Hampton Court, including Windsor, Marlow and Henley. In 2011 comedian David Walliams swam the from Lechlade to Westminster Bridge and raised over £1 million for charity. In non-tidal stretches swimming was, and still is, a leisure and fitness activity among experienced swimmers where safe, deeper outer channels are used in times of low stream. A Thames meander is a long-distance journey over all or part of the Thames by running, swimming or using any of the above
River Thames Teddington, were transferred to the Port of London Authority. In 1974 the Thames Conservancy became part of the new Thames Water Authority. When Thames Water was privatised in 1990, its river management functions were transferred to the National Rivers Authority, in 1996 subsumed into the Environment Agency. In 2010, the Thames won the world's largest environmental award at the time, the $350,000 International Riverprize, presented at the International Riversymposium in Perth, WA in recognition of the substantial and sustained restoration of the river by many hundreds of organisations and individuals since the 1950s. Until enough crossings were established, the river