The great wildebeest migration is the movement of vast numbers of wildebeest (up to 1.5 million) between Serengeti National Park in Tanzania and Masai Mara National Reserve in Kenya, accompanied by about 350,000 Thomson’s gazelle, 200,000 zebra and 12,000 eland. The animals move in an annual, clock-wise pattern which is fairly predictable. They migrate throughout the year, constantly seeking fresh grazing. The precise timing of the Serengeti wildebeest migration is entirely dependent upon the rainfall patterns each year. Despite the varying weather, putting together a migration specific itinerary is not as difficult as one may at first think.