Kruger National ParkOrdinarily it is not permitted for visitors to leave their cars in the game preserve and there are many notices to this effect. However, at certain places there is little chance of attack from wild animals and here people are allowed to walk to certain vantage points. Here, visitors watch hippopotami lying partly submerged in the Crocodile River. November 25, 1948. (Photo by George Rodger, Magnum).