One can either drive 6 hours from Nairobi or fly into the grass lands to one of the airstrips in a small plane depending on which part of the Mara you are staying.
Carry Mid and long range lenses. Most vehicles will provide you with bean bags to rest you camera on. Insist on early morning drives as it's the best time to photograph. If flying into the Mara travel light as small planes have weight restrictions.
Early morning with the golden light coming from the side is probably the best time to photograph the wild in the grasslands of the Masai Mara. One gets approximately an hour or so before the color of this amazing light changes. Here you see a pait of young lionesses sitting in the vast expanse soaking in the morning sun.