Examples of structures used along the study area in order to protect the coast from erosion. A) tyres used as groins along Palomino e La Guajira, B) Sand-Bags used in
Palmarito e Atl
antico, C) Rock revetments in Cartagena, D and E) Rip-rap revetments and groins at Tolu and Covenas (Sucre), F and G) Groins at Playa Blanca and Arboletes ~ e
Cordoba and Antioquia Departaments, H) Revetment located at San Luis (San Andres Island).