The wildebeest migration river crossing beginning July moves north and passes through the Lobo and the Wagakuria area en-route to Kenya's Masai Mara Game Reserve. In September, the wildebeest herds are spread out over the northern Serengeti National Park and Kenya's Masai Mara Game Reserve. Several large herds of wildebeest remain behind in the area and weather changes may sometimes bring the herds back into the area from the Mara. In October, the herds move south towards the central Serengeti National Park via the Lobo area of the Serengeti National Park.