Oceanic crust, thermal springs and active faults


Greece is one of the few places in Europe you can actually see oceanic crust, not fragments but whole mountains of it! Oceanic crust is the part of Earth’s lithosphere that surfaces in the ocean basins, most of the times at depths of thousand meters.

New oceanic crust is forming now in the Atlantic Ocean’s mid-ocean ridge and other places, but it is quite rare to see ancient oceanic crust on the land. We will visit a mountain formed mainly by oceanic crust. We will also see some of the best preserved active fault traces, experience and take a bath in a thermal spa, visit the ancient battlefield of Thermopylae where Leonidas tried to stop the Persian army with only 300 Spartans.


  • Visit a mountain made of oceanic crust.
  • See some of the best-preserved active fault traces in the world.
  • Visit the ancient battlefield of Thermopylae.
  • Visit the nearby hot springs, bring your bathing suit.
  • Learn and see the geology of the area, experience the activity of an active fault at first hand.
  • Find fossils



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