Santorini's caldera is one of Earth's most dramatic geological wonders - a flooded volcanic crater 12 km across formed after a catastrophic eruption around 1600 BC. White towns on 300-meter cliffs overlook deep blue waters where the volcano islands lie.
Views free from any rim village. Boat tours to volcano €25-50.
Sunset for the famous golden light on cliffs. Boat tours best in morning (calmer seas). The caldera is visible from Fira, Imerovigli, Firostefani, and Oia.
faq.subtitle Santorini Caldera
A massive volcanic eruption around 1600 BC (Minoan Eruption) destroyed a previous circular island. The center collapsed and was flooded by the sea, leaving today's crescent shape. This event likely ended Minoan civilization and possibly inspired the Atlantis legend.
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