Me and my Wife, and our sons of 4.5 and 3 years old

by Patrick
(The Netherlands)

We're flying to Johannesburg where we will visit a few malaria-free National Parks in the North. Then we will fly to Cape Town or Port Elizabeth to visit the South.

My questions:
- what is the best and most budget friendly way to do this? Is hiring a campervan cheaper than hiring a car and booking accommodations, or not?
- What does the average car and campervan cost per day?
- Which affordable accommodations are kid-friendly
- Any other suggestions?