Johan Reyns¹, Mathilde Lindhart², Gerd Masselink³ and Dano J.A. Roelvink¹, (1)IHE Delft Institute for Water Education, Coastal and Urban Risk & Resilience, Delft, Netherlands, (2)University of Plymouth, School of Biological and Marine Sciences, Plymouth, United Kingdom, (3)Plymouth University, School of Biological and Marine Sciences, Plymouth, United Kingdom