With one of the most spectacular backdrops in the world, the Vietnam Mountain Marathon is a unique and unforgettable experience. Courses vary in length, ranging from a 10-kilometre fun run to a 100-kilometre ultra-marathon. Set amid the mountain peaks of Sapa, this year's route winds past buffalo trails and yellowing rice terraces, passing ethnic minority villages along the way. The course features challenging climbs, dizzying descents and plenty of great camraderie.