Sunken Ship, Key Largo

Photograph by David Doubilet, National Geographic

Upholstered with luminous sponges and corals, the bridge of the U.S. Coast Guard Cutter Duane attracts schools of smallmouth grunts—and divers. The ship was intentionally sunk in 1987 off Key Largo to create an artificial reef 120 feet (36 meters) deep.

See more photographs from the January 2011 feature story "Relics to Reefs."

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