Mont Blanc: The Holy Grail of ultra-trail running

Tens of thousands of spectators are expected in the ski resort for the occasion to cheer on the runners who have come from all over the world for the grueling challenge.

Spain's Kilian Jornet competes on his way to victory in the 19th edition of the Ultra Trail du Mont Blanc, a 171km trail race crossing France, Italy and Switzerland in August 27, 2022. (AFP)