Nxai Pan National Park is a national park in north-eastern Botswana, consisting of Nxai Pan, which is one of the Makgadikgadi Pan salt flats. Nxai Pan National Park lies just north of the Maun-Nata main road and adjoins the Makgadikgadi Pans National Park on its northern border. The pan itself is a fossil lakebed about 40 square km in size.