Marathon des Sables

The week-long Sand Marathon takes place in the gruelling conditions of Moroccan desert with sandstorms and brain-frying heat as the major obstacles to achieving such an intense feat. The race is over 150 miles (241km) of craggy, sandswept terrain and competitors from around the world partake in the charity-driven event that benefits the infrastructure of the region. Only the fittest and most prepared are advised to partake.