Although damage has been ruled out to El Faro beach in Arroyo as a result of the maneuvers that the U.S. Marine Corps has been conducting there for several weeks now, the undersecretary of the Department of Natural and Environmental Resources (DNER), Nelson Cruz, announced Tuesday that, as a preventive measure, agency personnel will go to the area to physically demarcate sea turtle nesting areas and breeding habitats for other endemic and migratory species.