Only a little over 100km separates these two islands in the Cyclades archipelago but they are very different in character. Mykonos is famed for its nightlife and beaches that attract hipsters and celebrities while the main town offers a tempting choice of bars and restaurants along its whitewashed alleys, lined with vines and bougainvillea. Santorini is the spectacular result of a volcanic eruption many thousands of years ago and is one of the most romantic destinations on earth, with incredible landscapes and beautiful sunsets.