Nicknamed the "Madmen's Diagonal", this running race is regarded as one of the most difficult in the world. The Grand Raid trail runs across the island of Réunion from one side to another for a total of around 150 kilometres between St Pierre in the South and St Denis in the North, with a change in altitude of over 9,000 metres.
A real physical challenge, the Grand Raid attracts hundreds of well-prepared and very experienced competitors. At the start line and along the roads, thousands of spectators encourage the athletes in a friendly atmosphere. Many helpers set up stands and picnic tables along the paths.
The Réunion Grand Raid is part of the Ultra-Trail World Tour, an international ultra-trail competition encompassing a circuit of ten races that take place on iconic sites and particularly difficult terrains. Beyond the physical feat, the Grand Raid offers sublime landscapes in lush countryside, from the Col des Bœufs pass to Roche Plate via the Chemin des Anglais, paved with black rocks.