Holistic Survival School's founder and teacher, Luke McLaughlin demonstrated his skills on the Discovery Channels, "Naked and Afraid" (Namibia, 21 days)  and "Naked and Afraid XL" (Colombia, 40 days)

Check out some of his favorite clips here and here (warning: Luke is naked.)

People always ask Luke what the experience was like.  Luke usually responds with a smirk and "it was a lot of things".  If you come to a class and the fire is going just right, you might be able to hear some of Luke's personal stories from his experiences.