HUGE crossing at crossing point no7 in the Mara River from the northern side of the Mara River near

HUGE crossing at crossing point no7 in the Mara River from the northern side of the Mara River near Kenya.

In September. the herds break up into smaller groups. About half of the animals remain in the northern Serengeti, the rest are swapping war stories in the Masai Mara. The Serengeti-Mara ecosystem is just that: one system that has been artificially divided by humans. The herds will be spread out, making the most of water and food.