Most tourists don’t stray away from Amalfi’s picturesque city center, but a three-hour trail behind the town ascends into the so-called Valle dei Mulini (Valley of the Mills) and Valle delle Ferriere (Valley of the Ironworks), a sight which is less known, but no less beautiful than Sorrento’s own Valley of the Mills. The lush vegetation and waterfalls of the Canneto River provide a stark contrast with Amalfi’s hot and dry Mediterranean climate. At the end of the valley, the nature reserve protects endemic species such as Woodwardia radicans, a…