Zakynthos, Greece
Far less crowded than sister islands Mykonos and Santorini, Zakynthos has some of the most beautiful beaches in the Greek Isles—namely, Navagio Beach. Sheltered by cliffs, Navagio is only accessible by boat, and draws its name (“Shipwreck”) from a freighter that ran aground, was abandoned, and still rests in the beach’s white sands today.