Standing on the rim of the Ngorongoro Crater for the first time, looking down into the 600-metre deep caldera that stretches 260 km² before you, is one of those travel moments that stops the breath. On a clear morning, the crater floor is spread below like a living diorama — distant herds of wildebeest, flamingo-pink soda lakes, dark forests on the crater walls.

The Geology: What Created Ngorongoro?

Approximately 2.5 million years ago, a massive volcano collapsed inward after a powerful eruption, creating the world's largest intact volcanic caldera. Unlike the Serengeti, the crater walls form a natural enclosure that keeps most animal populations resident year-round — which is why the density of wildlife is so extraordinary.

Wildlife in the Crater

The crater's permanent residents include:

  • Black Rhino: Approximately 26-28 individuals — one of the most viable wild populations remaining. Spotting the rhino is often a highlight of the crater visit.
  • Lion: A resident pride of approximately 60-70 lions. The crater lions are famous for their black-maned males, though inbreeding has become a conservation concern.
  • Elephant: Large bulls regularly come down from the crater forests. Surprisingly few female elephants live permanently in the crater.
  • Cape Buffalo: The crater supports approximately 6,000 buffalo — among the highest densities anywhere in Africa.
  • Hippopotamus: The Ngoitoktok hippo pool in the centre of the crater holds a large resident pod.
  • Flamingo: The alkaline Lake Magadi (Crater Lake) turns pink with lesser flamingos, particularly in the dry season.

Note: Giraffe and impala do not inhabit the crater, as the steep walls are too difficult for them to navigate. Cheetah populations have declined significantly due to lion pressure.

Olduvai Gorge: The Cradle of Humanity

En route between the Serengeti and Ngorongoro, most itineraries stop at Olduvai Gorge (correctly Oldupai). This 90-metre deep ravine in the floor of the Great Rift Valley is where Mary and Louis Leakey discovered Homo habilis — one of our earliest known ancestors. The small museum tells the story of 2 million years of human evolution discovered in these very rocks.

Visiting Ngorongoro

Day visitors descend into the crater by 4×4 vehicle in the morning (crater access opens at 6am, all vehicles must be out by 6pm). You cannot walk on the crater floor — it is drive-only. A typical crater visit takes 4-6 hours.

Maximum visitor numbers in the crater are regulated, but in peak season (July-October) traffic can be significant around key wildlife sightings. Early morning entry (as close to 6am as possible) dramatically improves your experience — the light is better, the animals are more active, and visitor numbers are lower.

Ngorongoro Conservation Area

Unlike a national park, the Ngorongoro Conservation Area is a multiple land-use area where approximately 90,000 Maasai people co-exist with wildlife. Maasai cattle are permitted in the crater during the dry season when grass elsewhere is sparse. This unique arrangement is the model for wildlife conservation alongside human communities across Africa.

All of Masonda's Tanzania safaris pass through Ngorongoro. View our full Tanzania safari itineraries →