The land of sand and big game has drawn kudos and controversy with its pursuit of an independent approach to wildlife management that challenges both travelers and the industry to reassess what it means to be a responsible tourist. Shown here, Heidi Huettmann of Stutgart, Germany, and her husband Helmut, climb the Big Mama sand dune in the Sossusvlei section of Namib-Naukluft National Park. Photos by Arnie Weissmann