Andros, the second-largest of the Cyclades, is a walker's paradise. Its wild mountains are cleaved by fecund valleys with trilling streams and ancient stone mills. On this lush island, springs tend to be a feature of each village and waterfalls cascade down hillsides most of the year. It's worth renting a car to get out to the footpaths, many of them stepped and cobbled, that will lead you through these majestic landscapes and among its copious wildflowers and fascinating archaeological remnants. The handsome main town of Hora, also known as Andros, is a ship owners' enclave packed with neoclassical mansions.