Ngorongoro Crater formed two to three million years ago when a volcano roughly the size of Kilimanjaro collapsed in on itself, leaving a self-contained caldera around 260 square kilometres wide with a permanent water supply and grass that never fully dries out. The result is one of the highest wildlife densities in Africa within a fixed, enclosed area — an estimated 25,000 large mammals live on the crater floor at any given time.
Vehicles descend a steep access road from the rim, at roughly 2,200m, down to the crater floor at around 1,800m, for a single game drive day — overnight stays inside the crater itself are not permitted.
Park fees and rules on the Tanzanian mainland are set by Tanzania National Parks (TANAPA).













