The Erg Chebbi represents one of two large dune fields in the Moroccan part of the Sahara desert, with dunes reaching a maximum height of approx. 150 m. The dromedary (Camelus dromedarius) is widely used as pack animal, for riding, and for its milk and meat in the arid and semi-arid regions of Africa and also Asia. Those dromedaries shown in the image are used for a riding excursion by foreign visitors.