Along the Tanzanian border is the Masai Mara Game Reserve, widely considered to be Africa's greatest wildlife reserve. The Masai Mara contains 200 square miles of open plains, woodlands and riverine forest. Contiguous with the Serengeti plains on the Tanzanian side of the border, the Masai Mara is home to a breathtaking array of wildlife. At any point in time, the park's vast grassland plains and savannas will be strewn with pockets of grazing zebras, giraffes, gazelles, wildebeest and topi. The acacia forests will abound with birdlife and monkeys. Elephants and buffaloes will be wallowing in the wide Musiara Swamp, while the Mara and Talek rivers will be brimming with hippos and crocodiles, watched over by the storks that stand on the sandy riverbanks.

Each year, the Masai Mara plays host to one of the world's greatest natural spectacles, the wildebeest migration from the Serengeti. From July to October of each year, the promise of rain and new grass in the north brings as many as 1.5 million wildebeest together into a single massive herd. With their fellow travelers, the zebras, they pour northward across the border into the Masai Mara, making a spectacular entrance in a surging column of life that stretches from horizon to horizon.