Take an extensive walking tour of the quintessential Greek island, Santorini. Visit the quaint village of Oia and stroll through its narrow, cobblestone lanes, viewing the brilliantly whitewashed buildings, shops, cafés and blue-domed churches. Thrill to the views atop Pyrgos Village. It is built amphitheatrically on a hill that offers magnificent views of Santorini in almost all directions. On top of this hill remain the ruins of a Venetian castle (Kasteli) that was once the island's administrative center. Sample local wines at a neighboring vineyard and learn about the effects of Santorini's rich, volcanic soil and microclimate on the rare Assyrtiko grapes. A traditional Greek lunch is a welcome respite in your day before you explore the island's caldera viewpoint and the famed black sand beach in the cosmopolitan area of Kamari Village. Your final stop is Fira, the capital of Santorini, where you'll browse the collection of archeological artifacts at the Prehistoric Museum and ride the town's aerial cable cars (ticket provided) back down to port to meet your tender.