In this new series of Ramblings, Clare Balding talks to those for whom walking is more than a leisure activity but a passion that's vital to their lives. In this first programme she goes to Thursley in Surrey to meet the novelist and screenwriter, David Nicholls. His first novel, 'Starter for Ten' was followed by the much acclaimed 'One Day', and as David admits to Clare. its success took him a little by surprise. They take an eight mile circular route around The Devils Punchbowl. David explains how important walking is to his creative process, although he always worries its a bit of a skive ! However, he finds it the ideal way to listen to and absorb a novel when he's adapting one of the classics for TV, as he did with 'Far From the Madding Crowd'. He talks to Clare about how he loves exploring new cities by foot and the techniques he uses to encourage his children to walk. The walk Clare and David took can be found on OS Explorer map OL33 & 145 or Landranger 186, the map reference is SU 955 414, the walk starts in the village of Thursley about 3 km south-west of Godalming. Thursley GU8 6QD Producer: Lucy Lunt.