The cliffs of Zumaia and the beaches are hidden gems on Spain’s Bay of Biscay coast. The cliffs form unusual vertical stratified layers of rock that attract visitors interested in this geological phenomenon. This unique landform, called a Flych, is a UNESCO Geopark. Zumaia is a fishing port located on the Guipúzcoa coast, where the Urola and Narrondo rivers meet.
The cliffs result from the wind and seas that have carved these mountains on the Basque coast in the north of Spain for 60 million years. The alternating hard and soft layers of rock result from sediments from the sea that were uplifted and compressed for millennia. The strata provide
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