Notwithstanding the hype, it really is remarkable that the plains and woodland making up Nairobi National Park should exist almost uncorrupted within earshot of Nairobi’s downtown traffic, complete with more than eighty species of large mammals, including all the giant savanna species with the exception of the elephant. It boasts the greatest density of megafauna of any city park in the world. There is, in fact, no comparable park anywhere. In contrast to the pitted streets of the city, gridlocked with traffic, the park is a haven of tranquil wilderness where humans have only temporary landing rights.
The park is a good place to spend time during a flight layover, or before an afternoon or evening flight, and you have a high chance of seeing certain species, especially black rhino, which might well elude you in the bigger Kenyan parks. Although it is fenced along its northern perimeter, the park is open to the south, in theory allowing migrating herds, and the predators that follow them, to come and go more or less freely. For all the low-flying planes and minibuses, you have a greater chance of witnessing a kill here than in any other park in Kenya.