The Great Migration in Tanzania is a year-round spectacle, with key events occurring from December to November. In December through March, the herds congregate in the Ngorongoro Conservation Area for calving. From April to June, they journey north, crossing the Grumeti River in June. The most iconic Mara River crossing happens between July and August. The migration concludes as the he... https://www.gondwanaecotours.com/travel-journal/when-is-the-great-migration/