Santorini's volcanic activity plays a role in many of island's popular activities, from swimming and sunbathing at the molten-dyed beaches (such as Kamari Beach) to exploring ancient ruins once buried in ash (Ancient Akrotiri). Even the flavor of wine here is affected by the island's volcanic terrain, making a trip to one of Santorini's many wineries a must-do activity for foodies. Outdoorsy types will enjoy hiking along the caldera from Fira, where the city of Atlantis was said to have once stood. Whatever you choose to do in Santorini, you can't miss a sunset from Oia, or while dining alfresco in Amoudi Bay.