It's well worth venturing as far as the Top End, an ancient Aboriginal land, to complete your exploration of the Northern Territories. After the highly cosmopolitan city of Darwin come the superb national parks of Kakadu and Litchfield, and the extremely well-protected Arnhem Land. It is claimed that the first Aborigines landed at Top End some 50,000 years ago and today they still make up almost 30% of the population.