Like a petrified wave, the dazzlingly bright and colourful limestone cliffs of Cala Luna seem to want to pour themselves into the turquoise sea. But as the saying goes, constant dripping wears away the stone, and indeed the elements have washed huge caves out of the rock. Along with the bay’s white sandy beach, these unique formations define the image of Sardinia’s fascinating east coast, with its steep cliffs and bays overlooked by bizarre rocks and karst mountain peaks. Read more