It starts at the intersection with the N-340 at El Vendrell and runs parallel to the Mediterranean Sea coastline passing through several coastal towns such as Calafell, Cubelles (Charlie Rivel's birth town), Vilanova i la Geltrú and Sitges, and across the Garraf Massif coast it finishes at Castelldefels.
The route begins at the intersection of N-340 in El Vendrell and runs alongside the Mediterranean Sea coastline, passing through coastal towns such as Calafell, Cubelles (Charlie Rivel's birthplace), Vilanova i la Geltrú, and Sitges. It then crosses the Garraf Massif coast to reach Castelldefels.