Sergey Gorshkov / Sand dunes, Namib Desert, Namibia

Richard Du Toit / Gemsbok (Oryx gazella) running, Namib-Naukluft National Park, Namibia

Jim Brandenburg / Aerial view of Namib Desert sand dunes, Namibia

Jim Brandenburg / Aerial view of Namib Desert meeting Atlantic Ocean at the Skeleton Coast, Namibia

Jim Brandenburg / Landscape of sand dunes, Namib Desert, Namibia

Gerry Ellis / Star dune formations, Namib-Naukluft National Park, Namibia

Gerry Ellis / Aerial view of barchan dunes showing typical horns and downwind slip face, at approximately 32 degrees, Skeleton Coast National Park, Namibia

Gerry Ellis / Aerial view of star dune formations, Namib-Naukluft National Park, Namibia

Jim Brandenburg / Gemsbok (Oryx gazella) trio running on sand dune, Namib Desert, Namibia

Michael & Patricia Fogden / Aerial view of sand dunes along the Skeleton Coast, Walvis Bay, Namibia

Cyril Ruoso / Coastal desert sand dunes, Swakopmund, Namibia

Cyril Ruoso / Desert sand dunes, Swakopmund, Namibia

Cyril Ruoso / Coastal desert sand dunes, Swakopmund, Namibia

Theo Allofs / Red sand dunes covered with vegetation, NamibRand Nature Reserve, Namibia

Theo Allofs / Plain covered with fairy circles, NamibRand Nature Reserve, Namibia

Theo Allofs / Plain covered with fairy circles, NamibRand Nature Reserve, Namibia

Theo Allofs / Aerial view of transverse sand dunes, Namib Desert, Namibia

Theo Allofs / Aerial view of transverse sand dunes, Namib Desert, Namibia

Theo Allofs / Red sand dunes, Tsauchab River Valley near Sossusvlei, Namib-Naukluft National Park, Namib Desert, Namibia

Theo Allofs / Rock outcrop and red sand dunes near Sossusvlei at sunrise, Namib-Naukluft National Park, Namib Desert, Namibia

Theo Allofs / Sand dunes south of Hoarusib River, Namib Desert, Namibia

Theo Allofs / Sand dunes and Hoarusib River, Namib Desert, Namibia

Gerry Ellis / Northern edge of sand dune formation blocked by Kuiseb River, Namib-Naukluft National Park, Namibia

Gerry Ellis / Aerial view of transverse sand dunes, Namib-Naukluft National Park, Namibia

Sergey Gorshkov / Sand dunes, Namib Desert, Namibia

Sergey Gorshkov / Fog moving in over sand dunes, Namib Desert, Namibia

Sergey Gorshkov / Rock spires, Namibia

Ingo Arndt / Cape Fur Seal (Arctocephalus pusillus) colony at shoreline, Cape Cross, Namibia

Ingo Arndt / Cape Fur Seal (Arctocephalus pusillus) colony at shoreline, Cape Cross, Namibia

Richard Du Toit / Fairy circles, Namib-Naukluft National Park, Namibia

Michael & Patricia Fogden / Aerial view of the Namib Desert showing large sand dunes, Namibia

Richard Du Toit / Namibian village, winter, Caprivi Strip, Namibia

Richard Du Toit / Sossusvlei Dunes, Namib-Naukluft National Park, Namibia

Richard Du Toit / Sossusvlei Dunes, Namib-Naukluft National Park, Namibia

Michael & Patricia Fogden / Cape Fur Seal (Arctocephalus pusillus) group on beach, aerial view, Skeleton Coast, Namibia

Gerry Ellis / Aerial view of transverse sand dune pattern in sand sea of Namib-Naukluft National Park, Namibia

Gerry Ellis / Aerial view of star dune formations, Namib-Naukluft National Park, Namibia

Gerry Ellis / Aerial view of barchan cunes showing typical horns and downwind slip face, at approximately 32 degrees, Skeleton Coast National Park, Namibia

Gerry Ellis / View from Big Daddy Dune, Namib-Naukluft National Park, Namibia

Jim Brandenburg / Grey Heron (Ardea cinerea) on sand dune, Namib Desert, Namibia

Jim Brandenburg / Atlantic coast meets Namib Desert, Namibia

Jim Brandenburg / Aerial view of diamond mining operation showing heavy earth-moving equipment and mountains of mine tailings, Skeleton Coast, Namibia

Jim Brandenburg / Sand dunes meet Atlantic Ocean, Skeleton Coast, Namib Desert, Namibia

Jim Brandenburg / Sand dunes, Namib Desert, Namibia

Jim Brandenburg / Sand dunes, Namib Desert, Namibia

Jim Brandenburg / Sand dunes and wetlands, Skeleton Coast, Namib Desert, Namibia

Jim Brandenburg / Aerial view of Owambo Village, Namibia

Jim Brandenburg / Sand dunes, Namib Desert, Namibia

Jim Brandenburg / Diamond mining, Namibia

Theo Allofs / Sand dunes and Pacific Ocean south of Walvis Bay, Namib Desert, Namibia

Gerry Ellis / Barchan Dune, Skeleton Coast National Park, Namibia

Jim Brandenburg / Rippled and patterned sand dunes of Namib Desert meet Atlantic Ocean, Namibia

Jim Brandenburg / Aerial view of Namib Desert, Namibia

Gerry Ellis / Aerial view of dry Ugab River coming off of Brandberg Mountain, Namib Desert, Damaraland, Namibia

Gerry Ellis / Aerial view of dry Ugab River bed running through Namib Desert, Damaraland, Namibia

Jim Brandenburg / Sand dunes, Namib Desert, Namibia

Jim Brandenburg / Sand dunes, Namib Desert, Namibia

Jim Brandenburg / Fog over sand dunes in the Namib Desert, Namibia