NGORONGORO CONSERVATION AREA The jewel in Ngorongoro's crown is a deep, volcanic crater, the largest un flooded and unbroken caldera in the world. About 20kms across, 600 meters deep and 300 sq kms in area, the Ngorongoro Crater is a breathtaking natural wonder. The Ngorongoro Conservation Area (NCA) is an extensive highland area along the eastern arm of the Rift Valley, with the world-renowned Ngorongoro Crater as its focal point. It is not a national park in the strict sense of the word, but the NCA was established to conserve wildlife and other natural resources. It also safeguards the interests of indigenous people and promotes tourism. Thus, guests on safari have the unique experience of seeing Maasai herdsmen whose cattle graze side by side with the tremendous variety of wildlife found in the area.