The Ngorongoro crater in Tanzania is a conservation area and a part of what's called the "World Heritage". I believe it's one of the most beautiful site in Africa ! The largerst natural zoo...
Yes, specially for people who have few time, they are easy to spot in the Ngorongoro, Everaldo, because its'a a large crater (+/- 25 km), and most of the animals remains inside the whole year !