Driving around the Sabie river will always result in seeing some interesting animals. The vegetation around the Sabie river can be very dense forest and thicket and it gets a little bit more open driving down south to the Crocodile river. The northern part of the park supports less flora and fauna and is often referred as the birding paradise.
If you choose to self-drive, and aren’t experienced in African animal tracking, you will still inevitably see elephants and buffalos, and many variety of antelope. Impalas are ubiquitous. Rhinos are less common, but big enough to be seen by the untrained eye. Leopards are seen are commonly seen by the experts, but are camouflaged and in trees, so present a challenge to the untrained. Everything else is down to your luck of the day.
If you have limited time, and want to do Kruger, go in the dry season, stay at a camp like Olifants, and confine yourself to the south of the park along the southern rivers.
South Africa is located south of the equator and has therefore a reverse order of summer and winter than Europe and North America. Generally is the KNP a dry and hot area, regardless of summer or winter. The South African summer (September -April) in the KNP is hot and sunny with occasional showers and temperature in the shadow range from 18°-30°C. and the winter (May-August) is warm and dry with temperatures ranging from 8°-22°C. September-April Hot and sunny with sporadic thunder showers. Average temp 18-30°C.