This week sees Ben Fogle head to his favourite county in Britain - Cornwall - to explore it from a whole new perspective as he tries his hand at free diving for the very first time - and his prize if he reaches a target depth of ten meters is the chance to dive with a colony of Grey Seals.Great British Bakeoff winner John Waite travels back home to Lancashire and the family farm he grew up in - and cooks up some traditional Lancashire treats - Eccles Cakes. Liz Bonnin is working with a team of volunteers at Cuan Wildlife Rescue centre in Shropshire- caring for injured birds; and actress Lesely Joseph is indulging her love of stately homes as she turns guide for the day at Osterley Park in Middlesex.