Photo | Red Beach Rocks

Santorini, Greece

Santorini, Greece

While the rough sand at this beach appears to be only red from afar, it is really a culmination of worn pebbles from multiple colors of volcanic rocks, remnants of eruptions past.


The island is the remnant of a volcanic cone whose top was blown off. The inner coast around the caldera is a sheer precipice of more than 300 m drop at its highest, and exhibits the various layers of solidified lava on top of each other, and the main towns perched on the crest. The ground then slopes outwards and downwards towards the outer perimeter, and the outer beaches are smooth and shallow. Beach sand colour depends on which geologic layer is exposed; there are beaches with sand or pebbles made of solidified lava of various colours: the Red Beach, the Black Beach, the White Beach, etc. The water at the darker coloured beaches is significantly warmer because the lava acts as a heat absorber.





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