ngorongoro craterThe Ngorongoro Crater, located in the Ngorongoro Conservation Area, is the world's biggest complete crater, measuring over 600 meters deep and 8-19 kilometers in circumference. It's thought to be around 8 million years old. The steep drop into the crater is almost as exciting as the view that greets you within; a breathtaking display of nature's greatest. The crater's varied topography, which includes swamps, rivers, marshes, woodlands, and cliffs, offers a haven for black-maned lions, cheetahs, buffalos, elephants, and leopards, as well as thousands of wildebeest, gazelles, and zebras, as well as both black-backed and golden jackals flamingoes and hippos. The Crater is also home to some of Tanzania's rare remaining rhinos.