We did a self drive in the park and saw many kinds of animals: elephant, zebra, suricate, jackal, kudu, eland and so on, even though it was very, very hot. You pay a day entrance fee and can leave and enter the park how many times you want that day. There is a small gas station when you enter, if you are in desperate need of gas.
It's easy to drive, just follow the map and keep a low speed. Stop and take a look at the board on your way in so you can see where animals were spotted recently. We had a small Hyundai rental car and it worked just fine, no need at all for a bigger or more powerful car.
This was one of the highlights of our South Africa trip. A memory for life, no doubt.
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