Must See Greece - Santorini (Thira)

Santorini is regarded by many as the most spectacular of the Greek islands. Thousands come to marvel at its sea-filled caldera, a vestige of what was probably the world's largest volcanic eruption. Its landscapes of blue-domed roofs, dazzling white walls and black-sand beaches contrast the charming with the unearthly.

The eruption that caused the caldera is believed by some myth-makers to have caused the disappearance of Atlantis. The island's violent volcanic history is visible everywhere you look - in its black beaches, earthquake-damaged dwellings and raw cliffs of lava plunging into the sea. Volcanic activity has been low-key for the past few decades, but minor tremors occur pretty frequently and experts reckon the caldera could bubble up once again at any moment. For lovers of impermanence and drama, no other place even comes close.

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