Namib Sand Sea (Namibia)
The Namib Sand Sea (Namibia) is the only coastal desert in the world that includes extensive dune fields influenced by fog Covering an area of over three million hectares and a buffer zone of 899,500 hectares, the site is composed of two dune systems, an ancient semi-consolidated one overlain by a younger active one. The desert is also exceptional as its dunes are formed by the transportation of materials from thousands of kilometres from the hinterland that are carried by river, ocean current and wind. It features gravel plains, coastal flats, rocky hills, inselbergs within the sand sea, a coastal lagoon, ephemeral rivers and more resulting in a landscape of exceptional beauty. Fog is the primary source of water in the site, accounting for an environment that is unique on such a scale in which endemic invertebrates, reptiles and mammals adapt to an ever-changing variety of microhabitats and ecological niches.