Experience a holiday of historic proportions aboard Norwegian Sky. From Naples you can step back in time while exploring the ruins of Pompeii - a UNESCO World Heritage Site - and journey to Sorrento to savour lunch at a local family-owned farm. Explore the best of Kotor, from the medieval sites of Old Town to fascinating museums and nearby expansive beaches. Then board an electric train in Koper and enjoy a scenic ride to the Dinaric Mountain Range where you can venture into an awe-inspiring subterranean world in the Postojna Cave.