The final stretch of the torrent of Gorg Blau, known as Sa Fosca, is the protagonist of this documentary from 1986. It is directed by Paco Albuquerque, who also wrote the screenplay along with writer and journalist Llorenç Capellá, with music by Joan Bibiloni.
Sa Fosca lasts for 48 minutes and after its screening will intervene Maties Oliver, one of the three members of the first hiker group that found the exit way of the legendary cave of Mallorca.
