Alfao Natural Park is located in the western part of Serra do Alvão near the city of Amarante, and includes a huge mountain mass, and the Oulu River passes through it between rocky outcrops, and a group of waterfalls with a height of about 250 meters fall into it, and this park is considered one of the most beautiful natural areas in The province, thanks to its amazing waters, granite stones, mountain vegetation and many other stunning landscapes.