Teams of 6 to 9 runners, or 2 to 5 for the Ultra version, tackle relay legs around a stunning lake route, totaling over 200km. Each team can strategically organize their legs, making for a dynamic racing experience. The course showcases spectacular views and memorable highlights, offering participants a chance to immerse themselves in the scenic beauty of the Franco-Swiss landscape. Runners will traverse through 29 communes across the cantons of Vaud, Valais, and Geneva, along with the Haute-Savoie region of France. This challenging relay not only tests endurance but also celebrates the vibrant environment and breathtaking panoramas along the way.