Explore one of the world’s most captivating destinations and find true tranquility in the wild. We welcome you to a breathtaking location inside Tanzania’s Nyerere National Park. A World Heritage Site and the largest game reserve in Africa, Nyerere is four times the size of the Serengeti and larger than the entire nation of Switzerland. It is also home to the largest concentrations of elephants in the world. Serena Mivumo River Lodge.