Follow signs for SS 131 direction Sassari. Exit the SS 131 at ORISTANO SUD / SANTA GIUSTA. Cross Oristano (Via Cagliari, Direction North), take the SP 56 and follow the signs to Cabras. When you arrive at Cabras follow the signs to the Museum or take the road that goes down to the sea (San Giovanni di Sinis) and Torre Grande. The museum is located Tharros street No. 121.