One of Sardinia's most beautiful medieval cities, seafront Alghero is the main resort in the northwest. Although largely given over to tourism – its population can almost quadruple in July and August – the town retains a proud and independent spirit. Its animated historic centre is a terrific place to hang out and, with so many excellent restaurants and bars, it makes an ideal base for exploring the beaches and beauty spots of the nearby Riviera del Corallo.