National Geographic : 1998 Mar
In 1987 the retired Coast Guard cutter Duane (right) was deliberately sunk in 120 feet of water seven miles off Key Largo. This 327-foot ve* sal, which served in World War 11and Vietnam, is serv ing Its country once again as an artificial reef that fur" dim away from fragile nat ural reefs and harbors life where none grew before. Algae now encrust Its steel frame, providing food for parroth. Corals and sponges ornament the hull, and the wheelhouse shelters schools of grunts (above). Naturalist Rachel Carson wrote that the marine life of the keys holds "dimly son foreshadowing of the ,P future.'w Sanctuary status , may help ensure that the future teems with life.