In the first episode of the series Gethin and Charlotte journey above and below Britain's oldest national park, The Peak District, better to understand the forces that have shaped its amazing landscape. On day one of their two-day adventure in the district described as nature's adventure playground, Gethin takes to the skies in a microlight, soaring over the radically different landscapes at 2,000 ft, witnessing the staggering effect the ages have had on its dramatic terrain.