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SwimBritain launches at London Aquatics Centre

Comedian David Walliams will be at London's Aquatics Centre today as he helps launch this year's SwimBritain campaign to get the British public swimming.

The initiative is backed by British swimming stars including Rebecca Adlington, Ellie Simmonds and Michael Jamieson.

The campaign hopes to get half a million people across the country interested in swimming and in keeping fit.