The marine coastline is a dynamic environment, with a complex natural variation dependent on its biological, physical and geological interactions. In the last years, local and regional environmental managers have modified our coasts for socioeconomic interests, eliminating the natural supply of sediments to our coastline. As a consequence, the authorities were forced to carry out beach regeneration techniques to protect and conserve this natural space, and also, to promote economic activity in the sector, such as tourism. The purpose of this work is to study the environmental impact of beach regeneration. To meet these objectives, the natural morphology of the coast and its natural sediment deposits, the impact on the Posidonia oceánica meadows and the legal framework covering coastal management are defined.