A beachrock (IMAGE) University of the Basque Country Caption Formación de arena cementada situada en Tunelboka (Getxo, País Vasco, España) Credit Nikole Arrieta / UPV/EHU Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.