Grumeti Game Reserve covers 2,000 square kms of area. This reserve forms part of larger Serengeti Maasai Mara ecosystem, where by the annual wildebeest migration do take place between July and October. Grumeti game reserve is located along the Northwestern border of the Serengeti National park. This provides a wide chance for various animals to come across for the purpose of searching water. This is where tourists have the chance to see the movement of huge herds of wildebeest and zebra and this describes the Serengeti/Mara ecology itself.