Whole coastline of Namibia is designated a national park

Mark Rowe in the Telegraph (UK): The Namib-Skeleton Coast National Park covers 26.6 million acres, making it larger than Portugal. It stretches for 976 miles (1,570km), from the Kunene River, at the northern border with Angola, to the Orange River, on the border with South Africa, and is expected to be promoted as a unified destination. The protected coastline consolidates three national parks: Skeleton Coast, Namib-Naukluft and Sperrgebiet. The last is the site of Namibia’s diamond mines, which have long been closed to the public.

The national park does not stop at the national borders – at the southern end it connects with South Africa’s Richetersveld National Park, while in the north it is linked to Angola’s Iona National Park. Some coastal roads are good, particularly in Dorob National Park, but there is no pan-Namibian highway...

NASA image of Namibia's Skeleton Coast