Contrary to popular beliefs, The Great Migration is a year-round event, not a continuous forward motion at all times. More than 1.2 million wildebeest and 300,000 zebra, along with topi and other gazelle constantly move in a cyclical journey through the Serengeti-Mara ecosystem in search of nutritious grass and water. They go forward, backward and fan out across the plains. They mill around, they split up, they join forces again, they walk in a line, they spread out or they hang around together. Even if you don’t catch the legendary river crossings, you’re in for an incredible treat.