Ultra-Trail refers to a long-distance trail running event that typically exceeds 42 kilometers (26.2 miles), often taking place in mountainous or rugged terrain. These races challenge participants with steep ascents, descents, and varying weather conditions, requiring both physical endurance and mental resilience. One of the most famous events in this category is the Ultra-Trail du Mont-Blanc, which attracts elite runners from around the world. Participants often navigate through breathtaking landscapes, making it a unique blend of sport and nature appreciation. Training for such events usually involves extensive preparation and a focus on building stamina and strength.