Tanya Harding is a committee member of the Channel Swimming & Piloting Federation. She has been involved in Channel swimming and swimming for many years. She is a active member of Eltham swimming club, Observer liason officer for the Channel Swimming & Piloting Federation. She is an active crew member on the English Channel escort boats among other things.
She is also a member of The Dover Beach Crew together with Freda Streeter, Irene Wakeham, Barrie Wakeham, Kevin Murphy, Nick Adams, Michelle Topatalo, Mike Jennings, Mike Ball, John Thorpe and other volunteers who won the inaugural Service to Marathon Swimming Award in 2013 given by the Marathon Swimmers Forum. She regularly helps run training sessions in Dover harbour for open water swimmers who challenge themselves to solo and relay crossings of the English Channel.