You can admire it as an authentic masterpiece of nature from the nearby Cavaliere and Cala di Roto beaches, accompanied by the guides of the Maddalena archipelago national park. Its sight gives unforgettable emotions. The Rosa beach on the island of Budelli, one of the most beautiful in the world, owes its name to the color of the sand, full of very small fragments of coral, granite, shells and mollusc shells. The spectacular color is due to a pink microorganism that 'inhabits' the Posidonia meadows and lives inside the shells.