Santorini, the southernmost of the Greek Cyclades, has to be one of the world's most dramatically beautiful islands. Its unique topography is the result of a massive volcanic eruption some 3,600 years ago, which blew the middle out of the island to create a caldera, a volcanic crater filled with deep blue water from the Mediterranean Sea.
For more information on what to see and do in Santorini, see our Santorini Island guide.
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