The Fred Whitton Challenge Alistair Humphreys, 4:10 minutes Watch The Fred Whitton Challenge on Vimeo The Fred Whitton Challenge is an iconic, 112-mile cycle challenge over all the major passes of the Lake District National Park. It's beautiful, difficult, simple, but not easy. Alastair Humphreys is an English adventurer, author and motivational speaker. Over a four-year period he cycled 46,000 miles around the world. He was a National Geographic Adventurer of the Year in 2012. He is responsible for the rise of the idea of the microadventure – short, local, accessible adventures.