Poltu Quatu Harbour

Tucked into a narrow, fjord-like bay carved between granite hills on the Costa Smeralda, Poltu Quatu is one of Sardinia's most striking natural harbours — the kind of place where the scenery does most of the talking. The surrounding cliffs give it a sheltered, almost secretive feel, though a fairly consistent southerly wind keeps things lively on the water. You're a short hop from beaches like Mucchi Bianchi and the waterpark Aquadream, with the upscale village of Arzachena inland for supplies and dining.