The 5th International Conference of the International Association of Cultural and Digital Tourism (IACuDiT) is to be held in Athens, Greece, on June 28-30, 2018, with the theme “Exploring Smart Tourism: The Cultural and Sustainability Synergies” The aim of this conference is to gather people from academia, industry, government, and other organizations, in order to discuss and develop new perspectives in the field of tourism, travel, hospitality, culture and heritage, leisure, and sports within a knowledge society in a sustainability context.