Embark on an extreme alpine trail through the majestic peaks of five 4000-meter summits, navigating technical alpine routes that pose significant challenges. This race features two epic course options set within the stunning imperial crown: the 56K Trail du Besso, which includes a daunting elevation gain of 5400m, and the 26K Tour du Roc with a 2230m ascent, both requiring completion before nightfall. Prepare for an invigorating experience amidst glaciers and unique alpine landscapes.