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Dive the remains of an epic World War II Coast Guard vessel. USCG Bibb is the deepest and most advanced wreck of Key Largo's artificial reef, offering scuba divers an incredibly preserved glimpse into the past. Commissioned in 1936, this 327-foot Treasury-class Coast Guard cutter was named after George M. Bibb, former Secretary of the Treasury. Built for durability and long-range missions, the USCG Bibb served the United States with distinction for nearly 50 years.
During World War II, the USCG Bibb was heavily involved in the Battle of the Atlantic, where she escorted convoys across the North Atlantic, protecting them from German U-boat attacks. She later served in the Pacific Theater, providing support during major military campaigns including the Battle of Okinawa. Her legacy didn’t stop there—during the Vietnam War, the USCG Bibb was once again called into service, reinforcing her reputation as one of the most versatile and reliable vessels of her class.
After her decommissioning in 1985, the ship was selected for a new mission: to become an artificial reef. On November 28, 1987, after being carefully prepared to meet environmental and safety standards, the USCG Bibb was intentionally sunk off the coast of Key Largo, Florida.
The USCG Bibb is one of Key Largo’s impressive deep wrecks, resting on her starboard side in roughly 130 feet of water. Her sideways orientation gives divers an entirely different perspective compared to other upright wrecks in the Keys.
For experienced Advanced Open Water divers seeking an unforgettable adventure, the USCG Bibb offers a one-of-a-kind wreck dive off the coast of Key Largo.
The Bibb rests on her starboard side in roughly 130 feet of water. Her sideways orientation gives divers an entirely different perspective compared to other upright wrecks in the Keys.
For divers seeking the best wreck diving experience in the Florida Keys, safety is key—especially at advanced sites like the USCG Bibb shipwreck in Key Largo.
The Bibb generally has strong currents, and along with its depth, it is an Advanced Open Water dive site.
Our expert Key Largo scuba diving team conducts thorough assessments of sea and weather conditions before every dive. Each trip includes a detailed dive briefing, covering current direction, safe descent and ascent techniques, emergency protocols, and a customized wreck dive plan suited to the conditions of the day.
Dive the USCG Bibb wreck with confidence—and discover the marine life, history, and excitement that make it one of the top dive sites in the Florida Keys.
As an Advanced Open Water Diver, the Bibb in Key Largo offers a unique environment to complete several PADI specialty dives. Diving the Bibb can count toward specialties such as Wreck, Deep, Underwater Navigation, Fish Identification, Digital Underwater Photographer, and more.
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103100 Overseas Highway #33 Key Largo, FL 33037