One of the peninsula's most famous beaches, Is Aruttas is a pristine arc of white sand fronted by translucent aquamarine waters. For years its quartz sand was carted off to be used in aquariums and on beaches on the Costa Smeralda, but it's now illegal to take the sand away. From San Salvatore on the main Oristano–Tharros road, follow signs 2km north along the SP7 then continue 5km west on the SP59 to reach the beach.