Clive Mason introduces Ian and Larisa, seasoned swimmers and friends of more than 30 years who are attempting the biggest challenge of their lives - swimming around the Scilly Isles. We visit Kerena Marchant, the first person to use a hearing dog for the deaf in the workplace. Once a seasoned BBC television producer, she has, along with her son Jordan, found a new passion in the world of dog agility and handling. We also get the latest round-up of deaf stories from around the UK with Seb and Erika. Show less