Blessed with three major rivers, several substantial tributaries, and many smaller rivers, as well as vast natural lakes and the enormous Kariba Dam, Zambia is one of the most water-rich countries in Africa. The source of the Zambezi is in northwest Zambia and runs through the Barotse floodplains until it forms the border with Zimbabwe. After providing hydroelectric power from Kariba Dam, it is joined by the Kafue River and later the Luangwa before heading out to the Indian Ocean. The Kafue and Luangwa Rivers are the lifeblood of the Kafue and Luangwa National Parks, teeming with hippos, crocodiles, waterbirds and plains game coming to drink. Many other rivers traverse the country with an abundance of delightful waterfalls found in the north and, of course, Victoria Falls to the south.