High Quality Content by WIKIPEDIA articles! The Niokolo-Koba National Park (fr. Parc National du Niokolo Koba PNNK) is a World Heritage Site and natural protected area in south eastern Senegal near the Guinea-Bissau border.Niokolo-Koba was declared a Senegalese national park on 1 January 1954, expanded in 1969, and it was inscribed as a World Heritage Site in 1981 as a UNESCO-MAB Biosphere Reserve. In 2007 it was added to the UNESCO List of Endangered World Heritage sites.