OLYMPIC swimmer Nicola Jackson and younger sister Joanne - tipped as a star of the future - will be leading a charity marathon at Richmond Pool.

The teenage sister act is helping to promote the Butlins Swimathon, which challenges entrants to complete a variety of distances, depending on ability and raising money for charity.

Swimmers are being urged to set aside Sunday, March 23, to tackle a 1,500m or 10,000m-swim, while there are also events for teams of two to six people.

More details are available at Richmond Pool, by telephoning 0845 3670036 or online at www.swimathon.org

The closing date for entries is Tuesday, March 11.