Episode 6

This week Ben Fogle is experiencing the world beneath the stunning Yorkshire Dales as he explores Britain's biggest underground cavern - Gaping Gill. Liz Bonnin is in Scotland and the Forest Park of Galloway - where she is tracking one of our rarest mammals the Pine Martin.; and we are at the Cotswold home of actress Angela Griffin who's sharing her love of local fresh produce with nine year old daughter Missey.