Exmoor is shaped by its rivers. From the wild, boggy heights of the Chains to wooded valleys and hidden coastal combes, these waterways define the landscape — and some of the finest walks on the moor.

Martin Hesp’s very first TV walk - across the roof of Exmoor past Lark’s Barrow to Malmsmead

Quick taster of a helicopter ride across just about all of Exmoor National Park

Martin Hesp takes a walk around his own parish of Old Cleeve

Martin Hesp recalls a memorable Exmoor walk he did with the then CEO of Exmoor National Park, Dr Nigel Stone