When organizing a safari to witness the Serengeti migration, understanding the optimal locations to stay is vital, as Wildebeest and Zebra move in a large anticlockwise circuit. The best period for the Masai Mara is from July to October, with June being ideal for the Grumeti River. The annual wildebeest migration, involving over 2 million animals like wildebeests, zebras, antelopes, and topis, traverses from Tanzania's Serengeti plains to Kenya's Masai Mara and back, following food and water sources.