(Mara - River of Death/2011) This documentary explores the Mara River in its entire length and the dramatic events that unfold during the migration season across its relentless waves. The river Mara in East Africa runs through two of Africa?s most important nature reserves: the Masai Mara in Kenya and Tanzania?s Serengeti National Park. The banks of the Mara are home to Africa?s finest wildlife and the largest wild herds in the world can be observed here. Moreover, the river plays a crucial role in the famous migration of wildebeest.