This ride ascends the Zig Zag Road at Box Hill, deep in the heart of the Surrey Hills. The climb featured in the London 2012 Olympic Road Races. With 130m ascent and 2.5km distance for the climb, 5km for the complete lap, it would take 68 laps and 340km to ascend an amount equivalent to the height of Mount Everest, something that has been done 28 times to date