Mahale is a stunning place on the shore of Lake Tanganyika in the most western part of the country and home to one of the largest Chimpanzee population in Africa. It combines chimp trekking, hiking, tropical and lush rainforest and beautiful beaches and offers a one of a kind experience. Selous is far more east and is not only the largest game reserve in Africa but also one of the best places for birding and great boat safaris in the country if not in Africa.