The road from Trapani to Marsala skirts round the edge of the lagoon and the island of Mozia providing fine views of the local "salina": panels of mirror-like water, held by thin strips of earth, synchronise to form an irregular and multicoloured scene. In places, the profile of a windmill may be discerned, a reminder of times past when they provided the main means of pumping the water and grinding the salt. The sight is even more striking in summer when the salt is ready to be collected: then, the pinkish hues of the concentrated saline contained in the outer pans with those towards the centre of a deeper colour, while the innermost, now dry, sparkle in the sunshine.