Grumeti River & Mara River are two iconic waterways in the Serengeti-Mara ecosystem, playing a crucial role in the Great Migration. The Grumeti River, located in the western Serengeti, is famous for its massive crocodiles that lie in wait as wildebeest and zebras attempt to cross. The Mara River, flowing through the Maasai Mara and northern Serengeti, is the dramatic stage for one of nature’s most thrilling spectacles—thousands of migrating animals braving strong currents and lurking predators. These rivers offer unforgettable wildlife encounters and breathtaking scenery.