Stars of the 2012 Olympics gathered at an Ealing swimming pool this morning to help get children interested in water based sports.
The Britsh Swimming Heroes Tour includes members of the swimming, diving, water polo and synchronised swimming teams.
Emma Walden went to meet them and sent this report from Gurnell Leisure Centre.
More top news
Twins Laviai and Lina Nielson were so inspired by volunteering at London 2012, that their ambition ever since has been to compete at Rio.
Candidate Sadiq Khan called for Ken Livingstone to be thrown out of the party after the former mayor claimed Hitler supported Zionism.
Police are hunting for a passenger seen on the Victoria Line after a woman was sexually assaulted on the Tube.