Protected by the rocky spur on which the picturesque medieval village of Posada is set surmounted by the spectacular Fava Castle, Su Tiriarzu is one of the largest and most beautiful beaches of the Baronia sub-region, immersed in an uncontaminated natural setting. Its wide and long expanse of clear sand, fine and deep, is punctuated by sea lilies, facing calm waters whose shades range from blue to green, backdropped by luxuriant vegetation on the banks of the Tondu and Longu basins and by the mouth of the Rio Posada, whilst the Montalbo arises majestically and clearly in the distance.