The most beautiful natural sites to discover Balsareny

This geological concretion with a French nickname is one of the geological curiosities of the Geopark. It can be found just before reaching the natural site of the Manresans lock, hung on the castle hill on the right bank of the Llobregat River. In addition to erosion caused by meteorological phenomena, the action of the river dynamics of the Llobregat and the forces it exerts on the outer part of the meander have caused the accumulation of sediments at the base of the hill and favoured the appearance of a mass of rocks sculpted by erosion.

North of Balsareny, at the foot of the castle hill, the Manresans lock diverts part of the Llobregat river to create the medieval Sequia canal. The site is surrounded by a lush grove with a rich ecosystem typical of the groves that cover the river landscapes of the heart of Catalonia. The water-intensive plant species that have developed there have adapted to the floodplain with its particularly nutrient-rich soil. Black alders, white willows, poplars and southern ash trees are among the most represented trees. The abundance of fruits and flowers in the area serve as a pantry for many birds such as nightingales and green woodpeckers.