The Great Karoo covers about 400,000 km2 (154,440 square miles) of the Western Cape, Eastern Cape, Northern Cape and some of the Free State. This represents about one-third of the area of South Africa. It extends from the Southern rim of the Great Escarpment (the mountain ranges of the coastal region in the Eastern Cape) northwards to the Orange River, and westwards to Namaqualand.
It is a huge semi-arid country whose name, once again derived from the Khoisan, means 'thirst'. Bisecting the Karoo is the N1 national highway that links Cape Town with Johannesburg. Approximately a quarter of the way along travelling north is Beaufort West, the capital of the region. There are very few towns or villages, those that have been established are isolated from each other. Due north from the Eastern Cape part of the Karoo, beyond the wide reaches of the Orange River, are the great diamond fields of the Northern Cape, their focus the historic city of Kimberly. To the west lies the Gordonia region, also vast and dry, whose principal town is Upington. The northern limit is the Kalahari desert and Botswana, its western being Namibia.
Other attractions is this vast region include Graaf Reinet in the Eastern Cape, national parks like the Karoo and Kalahari Gemsbok and the Augrabies Falls west of Upington. In the Kalahari some San bushmen still live in total harmony with nature and much as their ancestors did many, many years ago.
Average temperatures (minimum - maximum): January: 17 - 36 Celsius / 65 - 96 Fahrenheit / July: 4 - 20 Celsius / 40 - 68 Fahrenheit.