Safari Guides
The Great Migration Guide: When and Where to See the Serengeti Migration
Discover the Great Migration in the Serengeti. Learn when and where to see wildebeest river crossings, calving season, and the world’s largest wildlife movement across Tanzania.

Written by Another World
The Great Migration is one of the most extraordinary wildlife spectacles on Earth. Every year, more than 1.5 million wildebeest, joined by hundreds of thousands of zebras and gazelles, move across the vast Serengeti ecosystem in search of fresh grass and water.
This ancient migration follows the rhythm of seasonal rains, creating one of the last great wildlife movements on the planet. For travelers on a Tanzania safari, witnessing the Great Migration is often the highlight of the journey.
Understanding where the herds move throughout the year can help travelers experience this remarkable natural event at its most dramatic moments.
What Is the Great Migration?
The Great Migration is a continuous cycle of movement across the Serengeti–Mara ecosystem, which stretches between northern Tanzania and southern Kenya.
Driven by rainfall and fresh grazing, the herds travel across hundreds of kilometers each year. Along the way, predators such as lions, cheetahs, hyenas, and crocodiles follow the migration, creating powerful wildlife interactions that define the African wilderness.
This movement is not a single event but a year-round cycle, with different stages unfolding across the Serengeti landscape.
January – March
Calving Season in the Southern Serengeti
At the beginning of the year, the herds gather in the southern Serengeti and Ndutu region.
Here the plains provide short, nutrient-rich grass ideal for newborn calves. During a few remarkable weeks between January and March, hundreds of thousands of wildebeest calves are born.
This calving season attracts predators and offers exceptional wildlife viewing. Lions, cheetahs, and hyenas closely follow the herds, creating intense moments of predator-prey interaction.
For many wildlife enthusiasts, this period offers some of the most dynamic safari experiences in Tanzania.
April – May
The Migration Begins to Move North
As the long rains arrive, the herds begin their slow movement north across the Serengeti.
This stage of the migration is less concentrated but still impressive, with long lines of animals stretching across the landscape.
The savanna becomes lush and green during this period, creating dramatic scenery and excellent photographic opportunities.
June – July
Crossing the Western Serengeti
By early summer, the migration reaches the central and western Serengeti.
One of the key highlights during this time is the crossing of the Grumeti River, where crocodiles wait patiently for herds attempting to cross.
While these crossings may be less dramatic than those of the Mara River later in the year, they still provide powerful wildlife moments and exciting safari encounters.
August – October
The Mara River Crossings
Perhaps the most famous stage of the Great Migration occurs in the northern Serengeti, near the Mara River.
Here the herds face one of the most dramatic obstacles of their journey. Wildebeest gather along steep riverbanks before suddenly plunging into the water in massive numbers.
These crossings can be chaotic and intense, as strong currents and waiting crocodiles create one of the most dramatic wildlife scenes in Africa.
For many travelers, witnessing a Mara River crossing is the defining moment of a Serengeti safari.
November – December
The Journey South
As the short rains return to the southern Serengeti, the herds begin their journey back south.
The migration spreads across the plains as animals follow the fresh grazing created by new rainfall.
This period marks the completion of the migration cycle, preparing the herds to return once again to the calving grounds of the southern Serengeti.
Why the Serengeti Migration Is So Unique
Few wildlife events in the world compare to the scale and ecological importance of the Great Migration.
It represents one of the last intact natural ecosystems where animals still move freely across vast landscapes.
The migration supports an entire food chain of predators and scavengers, shaping the balance of the Serengeti ecosystem.
For travelers, witnessing this ancient cycle offers a rare glimpse into the true power and beauty of the natural world.
Planning a Great Migration Safari
Because the herds move continuously across the Serengeti, the best migration experiences depend on carefully planning the safari itinerary according to the season.
Positioning lodges and travel routes near the most active migration regions greatly increases the chances of encountering the herds at their most spectacular moments.
Experienced safari planners track seasonal patterns, rainfall, and wildlife movement to design itineraries that maximize the migration experience.
Experiencing the Great Migration With Another World
At Another World, our safari journeys are designed according to the seasonal movement of wildlife across the Serengeti ecosystem.
By carefully selecting lodge locations, travel timing, and expert local guides, we position travelers close to the most remarkable moments of the migration.
From witnessing the calving season in the southern Serengeti to observing dramatic river crossings in the north, every journey is crafted to reveal the full story of this extraordinary wildlife phenomenon.
A Journey Into One of Nature’s Greatest Spectacles
The Great Migration is more than a wildlife event.
It is one of the most powerful natural cycles on Earth.
For travelers seeking one of the world’s most extraordinary safari experiences, witnessing the migration across the Serengeti plains is an unforgettable encounter with the wild.
Plan Your Great Migration Safari
Contact our team at Another World to begin planning your Tanzania safari and experience the Great Migration firsthand.