This is the toughest race on earth. 240 km over 6 days, across the Moroccan Sahara.
It's an incredible challenge.
He attempted it many years ago as a young man, but could not complete it becaue of the damage to his feet. It's always nagged him that he didn't complete it.
So. They are starting today and have to complete he 34km stage in 10 hours or less. All competitors ave to carry their own sleeping equipment and food.