Kruger Park is South Africa's largest national park reserve. It's got the Big Five - lion, leopard, buffalo, elephant, and rhinoceros, as well as hippos, antelopes, giraffes and many others. At almost 20,000 square km, it's bigger than Israel and almost the size of four Trinidads (Trinidad and Tobago), and stretches over two South African provinces and meets the Mozambique border. I went there in 2010 as part of an overland tour from Johannesburg to Victoria Falls, and spent a good part of two days in the park from 6am in the morning to the late afternoon both days. We had a very skilled guide who found us the Big Five, including the elusive leopard five times, and managed to spot animals from a great distance whilst driving. The Kruger's giant size and dense bush forests (I mistakenly thought it'd be like the plains of the Serengeti and Masai Mara in East Africa) means animals can be hard to spot, even rhinos which can blend into the undergrowth really well, so having a good guide can make a big difference.