South Luangwa National Park in eastern Zambia, the southernmost of three national parks in the valley of the Luangwa River, is a world-renowned wildlife haven. It supports large populations of Thornicroft's Giraffe, and herds of elephant and buffalo often several hundred strong, while the Luangwa River supports abundant crocodiles and hippopotamuses. It is one of the best-known national parks in Africa for walking safaris.