The huge extinct volcanic crater of Ngorongoro, in Tanganyika, some twelve miles across, is one of the richest big game areas remaining in Africa.
Today it is a National Park; whether it will remain a sanctuary for wild animals in the future is now a matter of public concern. In this programme, the last of their present series, Armand and Michaela Denis record the variety of wild life that forms the natural heritage of this part of Africa.