Video: The Richtersveld Transfrontier Wildrun in South Africa and Namibia

The Richtersveld Transfrontier Wildrun is a five-day long, stage race that takes place in a remote region of South Africa each year. The 2016 edition of the race actually crossed the border into Namibia as well, covering some 200 km (124 miles) along a course that was both incredibly difficult and beautiful at the same time. American ultrarunner Nikki Kimball used the race as a tune-up for the Western States, which is another race that is legendary for its level of difficulty. In this video, you'll get a chance to see what the Richtersveld is all about, as we go out onto the course with runners who are pushing themselves to cross some of the toughest terrain imaginable.