Sant Roma de Sau is a small town located in the province of Barcelona, Catalonia, Spain. It is situated at an altitude of 542 meters above sea level, in the heart of the Guilleries massif, and is surrounded by mountains and forests.

One of the main attractions of Sant Roma de Sau is the Sau Reservoir, which was built in 1962 and covers an area of 1,700 hectares. The reservoir provides drinking water to the city of Barcelona and the surrounding areas, as well as being a popular spot for water sports, fishing, and boating.

Another popular attraction in Sant Roma de Sau is the Romanesque-style church of Sant Roma, which dates back to the 11th century. The church is situated on a hill overlooking the Sau Reservoir, and its bell tower is an iconic symbol of the town.

Sant Roma de Sau is also a popular destination for hikers and nature lovers, with numerous trails and paths winding through the surrounding mountains and forests. One of the most popular hikes in the area is the route that leads from Sant Roma de Sau to the Collsacabra cliffs, which offer stunning views of the surrounding countryside.