The approximately 5000-year-old Dolmen de Ca l’Arenes is located in the municipality of Dosrius in the Parc Natural del Montnegre i el Corredor in the province of Barcelona in Catalonia in Spain.
The relatively flat dolmen is almost completely covered with capstones in situ in the chamber and antechamber area. It contains remnants of the corridor with access to the chamber, as well as remnants of curbstones from the hill. Dolmen de Ca l’Arenes was discovered in 1997 and restored from 2006 to 2007. Nearby is the menhir of Ca l’Arenes and the Dolmen Pedra Gentil.