The Atacama Crossing (Chile) is a 250-kilometer / 155 mile, 7-day, self-supported race, which is part of the 4 Deserts Race Series, world's harderst footrace series that takes place in some of the most remote and beatiful locations. The Atacama Crossing is famous for its lunar like scenery and diverse but challenging terrain that ranges from salt crust to huge stunning sand dunes and a 360-degree view of volcanoes that surround the course.