The group was also actively involved in the preservation of Isla de Ratones (Mice Island), a small island off the coast of Cabo Rojo.
In a joint venture with the Puerto Rico Department of Natural and Environmental Resources, the committee had a major role in the restoration project of Isla de Ratones, a small key by the coast of Cabo Rojo that is rapidly losing its surface area due to erosion.
Valle Carlo also spearheaded the initiative to save Isla de Ratones (Mice Island), a small key off the coast of Cabo Rojo that israpidly losing its surface area through erosion.
Isla Margarita | Isla de la Juventud | Isla Verde | Isla Mayor | Isla Fisher | Spanish cruiser Isla de Cuba | Isla, Veracruz | Isla Negra | Isla de Ratones | Isla de Maipo | ''Isla de Cuba'' | Isla | Camarón de la Isla | Los Ratones Paranoicos | Isla Vista, California | Isla Canela | USS ''Isla de Cuba'' | River Isla, Moray | Pablo Isla | La Isla Bonita | Isla Vista, California (Santa Barbara County) | Isla Vista | Isla Verde, Puerto Rico | Isla Tortuga | Isla Todos Santos | Isla de Providencia | ''Isla de Luzon'' | Isla del Sol | Isla de los Estados | Isla del Caño |