A narrow and curved strip with very fine grains of quartz, almost two kilometres long, separates the turquoise sea from the Sa Salina Manna pond. It is the splendid beach of Putzu Idu, called 'Cala Saline' and sheltered from the northwesterly mistral wind, which extends to the north of the magnificent S'Arena Scoada and extends as far as the beach of Mandriola. The quartz sand is soft and white. The waters offer evocative shades of green and blue that vary according to the light. The seabed is sandy and the waters are shallow for tens of metres.