Sabyna and Montse are two teenagers who live in Alcover, Catalonia. They go to a place called "El niu de l'Àliga" in the summer for swimming. "El niu de l'Àliga" is a beautiful spot along the Glorieta River known for its small waterfall covered in moss and uniquely shaped rocks formed from water lime deposits. The name of the site comes from a rock formation near the river that resembles the curved beak of an eagle.