The planet is full of more natural splendor than any one person could hope to see in a lifetime, but there are certain events and sights that one shouldn’t leave Earth without seeing. The Great Migration in Tanzania is certainly chief among them.

Simply put, the Great Migration is a period during which vast numbers of Wildebeest traverse across the Serengeti. They’re accompanied by large numbers of Zebra, Gazelles, and other wildlife as well. The result is a cacophony of stunning wildlife passing right before the eyes of those lucky enough to behold the event.

This wide array of wildlife generally spends the months of November, December, January, February, and March in the Serengeti’s short-grass plains. It is during this time that Wildebeest calves are born, usually during a relatively short window in February.

By April, movement begins. Millions of large animals start their trek North and West, seeking water and sustenance. This movement continues for months as they are constantly roaming during this period of time. A number of incredible viewing opportunities present themselves during the migration, but perhaps none is quite so spectacular as watching the herds cross the Mara River.

As the Mara rushes, the Wildebeest and other animals become frantic trying to find a safe way across. The sight provides great insight into the mentalities and social dynamics of some of the Serengeti’s most striking wildlife.

This Great Migration is truly the sort of thing that everyone should make a point to see in their lifetime, but the great thing about the Serengeti is that it’s beautiful to behold even when the migration is slow. From elephants to lions and beyond, there’s always something to see in this amazing region.

Still, there’s nothing quite like taking a safari during the Great Migration. For those who love and appreciate nature and all it has to offer, this experience shouldn’t be missed.