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Basque coast is pictured on May 22, 2003, Basque Country. Between Basque towns of Mutriku and Zumaia are the Flysch, several kilometres of rugged cliffs that lead down into the sea, formed through the erosive action of water and movements of land over the course of 50 million years. These rocks have always been of interest to geologists on account of their fossil remains. (Ander Gillenea / Bostok Photo)