Funny, we sleep within electric fenced compounds to keep the free range animals away from us. That is a hyena on the sign. This area of Kruger Park is blessed with a lot of hyenas. They will run around the perimeter fencing at night looking for a way in. Guess they like people. We were in the Free Range area of Kruger Park. If the animals wish, they can roam into either Zimbabwe or Mozambique. There are no border fences. The other half of Kruger Park is sectioned into Private Reserves. These Private Reserves are completely perimeter fenced with electric fences to keep the animals in. Each Private Reserve covers many square miles of territory. The animals are protected and controlled by the National Park system within these reserves and lead as normal of a life as they would Free Range. The government leases concessions within these reserves  for the luxurious private tent camps. This is where the Americans and Europeans go on safari and spend $500-1,000USD  per night per person to see the animals. Rumor has it that the big five in the reserves have GPS attachments. One should be guaranteed a sighting for $1,000 a night. We did Kruger Park like the South Africans. Stayed in the Rest Camps and took the same 3 hour long evening or late afternoon game drives for $25 USD per person. Our ensuite, air con bungalows with full kitchen ran $85-125 per night for two. Rest camps have restaurants, swimming pools, coin op laundries, general stores etc.