IBikeLondon leads this friendly group ride through London's parks, along Regent's Canal, up to Primrose Hill through Hampstead Heath and Highgate finally down to Camden. The route covers 19 miles with some hills – but there will be plenty of opportunities to catch your breath. You'll need your own bike and lunch. Meet at the bronze statue of Achilles near Hyde Park Corner between the Broad Walk and Lovers’ Walk at 10.30am for an 11am start. See the full route map here.