Following 2009's conquest of Hadrian's Wall, Mark Radcliffe and Stuart Maconie embark on a bold new challenge - walking over 80 miles of England's Jurassic Coastline. Setting off from Lulworth Cove, the intrepid duo are travelling the Natural World Heritage Coastline by day, stopping en route to broadcast four live shows from various venues in Dorset and East Devon. Each show will feature audio snapshots of their adventure, as well as live session guests including Show Of Hands, Squeeze, Edwyn Collins and Fisherman's Friends. In Monday's show, following a weekend of walking, Mark and Stuart arrive in Lyme Regis, the "pearl of Dorset". Their special guests are folk troubadour Billy Bragg, who joins Mark and Stuart on the road with his guitar, and the up-and-coming British singer Eliza Doolittle. Mark and Stuart's live evening broadcasts are not open to the public but you can chart their progress online.