Portrait of Dani tribe child looking at the camera. Baliem Valley in Indonesia, Papua New Guinea. The Dani people, also spelled Ndani, and sometimes conflated with the Lani group to the west, are a people from the central highlands of western New Guinea (the Indonesian province of Papua). They are one of the most populous tribes in the highlands, and are found spread out through the highlands. The Dani are one of the best-known ethnic groups in Papua, due to the relatively numerous tourists who visit the Baliem Valley area where they predominate.