One of the must-see events in nature, the great wildebeest migration crossing the Mara River in the Serengeti National Park, Tanzania. Once one wildebeest decides to kivuku (swahili for "crossing"), thousands follow in a mad dash across the Mara River. Predators such as crocodiles and lions await those unfortunate few. This crossing, on August 30, 2015 took place at crossing point #8 and lasted 48 minutes.