The Coast Guard is establishing a temporary safety zone for navigable waters within 200 yards radius around the Barge DEFIANT grounded north of El Morro, east of the green buoy three, near the entrance of the San Juan Harbor. The safety zone is needed to protect personnel, vessels, and the marine environment from potential hazards created by the Barge DEFIANT grounding. Entry of vessels or persons into this zone is prohibited unless specifically authorized by the Captain of the Port, Sector San Juan.