If Kate Humble has a scratch map, it’s probably now just an ordinary map.

The 50-year-old BBC presenter and devoted globetrotter has spent her career travelling most of the known world, from a 2,000-mile odyssey across the Pacific, to investigating the shepherds of Afghanistan.

We discover her best and worst travel memories, and the causes of her wanderlust. If you think her programmes are intrepid, wait until you hear what she got up to aged 19…