As John Craven celebrates 50 years as a BBC presenter, on this – his 1,250th episode for Countryfile - he opens up a treasure trove of memories of some of his favourite parts of Britain. Each location evokes aspects of his life, his career and his passions: discovering a hidden treasure he never knew existed on his childhood doorstep in Yorkshire; indulging his love of verse with a trip to Cambridgeshire to find out more about John Clare, the peasant poet; and revealing his love of history on an ancient Scottish battlefield. And he has never forgotten the time he was roped up to the heady heights of the dark hedges in Northern Ireland.