Best camera lenses for photographing wild elephants safely from a jeep

A 70-200mm lens is actually perfect for Minneriya. During the Gathering (August/September), the elephants congregate on the open grass plains near the reservoir. The jeeps can get relatively close safely, and the elephants often walk right past the vehicles. A 600mm lens is often too tight for herd shots. Bring a wide-angle lens as well for environmental landscapes.