Namibia (Republic of Namibia), is a presidential republic of Southern Africa, washed to the west by the Atlantic Ocean, bordered to the north with Angola, to the north-east with Zambia and Zimbabwe, to the east with Botswana, to the south-east and south with the Republic of South Africa. Former German colony, then administered by South Africa, it's capital is Windhoek, Namibia has one the world's lowest population density, which amounted to 2.5 inhabitants per square km (2007). The coast of the Atlantic Ocean that extends to a length of more than 1,500 km, from the mouth of Cunene to the north to that of the Orange River to the south, has a sandy lowland formed by the Namib desert, which stretches inland for a depth of over 100 km. The central part of the country consists of a series of arid plateaus, ordered from north to south, located between 1,000 and 2,000 metres of altitude, which slope down toward the depressions of Etosha Pan to the north, of the Kalahari Desert to the east, of the Orange River to the south, and of the Namib Desert and the coast of the Atlantic Ocean to the west. The central plateau in many places exceeds 2,000 metres reaching the highest elevation with the Brandberg mountain (2,606 metres), the highest peak in the country. The other major area of the country is made up of the Kalahari desert, located in the east, along the borders with Botswana and South Africa, this is an highland characterized by wide sand stretches alternated with scrub. The main rivers of Namibia are all at the border of the country, to the south is the Orange river, which marks the border with South Africa, to the north along the border with Angola are Okavango and Cunene rivers, while the Zambezi marks the brief stretch of the border with Zambia. From an economic point of view, the country is rich in mineral resources especially diamonds, are present in large quantities even uranium, gold, copper, tin, zinc, manganese, lead, cadmium, vanadium, silver, salt and phosphates. The breeding is of great importance are breed cattle, sheep (karakul sheep), goats and poultry; other important economic resource is fishing, of which Namibia occupies one of the first places among African states, thanks to cold Benguela current, Namibian waters are home to some of the richest fishing grounds in the world, are fished mainly anchovies, sardines and mackerel. Agriculture, because dry climate is not very developed, there are cultivated maize, millet, sorghum and wheat. The industry is under-developed, few industries present are related to the processing of mineral products, fish and livestock. Tourism is an expanding resource, thanks to the wonderful desert landscapes, particularly developed is eco-tourism, there are many protected areas, including national parks more note are Etosha, Namib-Naukluft, Waterberg, Fish River Canyon and Skeleton Coast.