The Great Migration in Tanzania is a year-round phenomenon, with peak events varying by location and season. From December to March, the herds congregate in the southern Serengeti and Ngorongoro Conservation Area, where synchronized calving occurs between late January and early March. In April to June, the herds journey northward, crossing the Grumeti River in June. From July to Octob... https://www.gondwanaecotours.com/travel-journal/when-is-the-great-migration/