The elemental drama of Santorini’s volcanic landscape draws more than 2 million visitors every year. For more than 3,500 years, this mineral-rich terroir has also produced outstanding wines. There are around 50 indigenous grapes (notably the bone-dry assyrtiko, key for producing the amber, caramel vinsanto). The vines are coiled around the grapes like baskets to protect them from the fierce sunlight and meltemi winds. Santorini Wine Trails offers personalized, small-group wine tours run by an enthusiastic and erudite enologist, Iliana Sidiropoulou. Ask her to take you to Domaine Sigalas, where award-winning vintages are paired with superb snacks; to Gaia, located in an old tomato-canning factory on Monolithos beach; and to the Venetsanos winery, whose rooftop wine bar seems to float above the port of Athinios.