Helen Mark visits Lyme Regis, along Dorset's Jurassic coast, to explore the Undercliffs, a fascinating jungle-like terrain that's been created by 200 years of landslips, and is still evolving today.

She learns that the exceptional rainfall of the last twelve months has increased the geological instability of this area that lies to the west of Lyme Regis, through which passes the South West Coast Path.

Helen meets geologists, naturalists, and the wildlife artist Elaine Franks, all of whom are passionate about the striking quality of the Undercliffs - a six mile stretch of land that's the nearest to jungle conditions that can be found in Britain.

Producer: Mark Smalley.