Diving atBibb (United States)
Approaching the U.S.C.G. Bibb Wreck immediately conveys the scale of this historical artificial reef. Resting off the Florida Keys, this decommissioned Coast Guard cutter presents a formidable dive. Its upper portions begin around 27 meters (90 ft), quickly descending to deeper areas. This site is reserved for divers with advanced training, primarily due to depth considerations and the potential for strong currents.
Evening condition tracking at Bibb features an air temperature of 25°C. We have recorded wave heights measuring 0.52m during this period. These figures outline the environmental parameters currently present.
Dive Site Coordinates
24.9952, -80.3795
Dive Site Overview
The U.S. Coast Guard Cutter Bibb, a 99.1 m (327 ft) vessel with a 12.5 m (41 ft) beam, holds a significant place in maritime history before its life as a dive site. Launched in 1937, she served extensively, including convoy patrol during World War II and search and rescue missions, famously saving nearly 70 survivors from the Bermuda Sky Queen airliner.
Decommissioned in 1985, the Bibb was purposefully sunk on November 28, 1987, alongside her sister ship, the Duane, near Molasses Reef. Both vessels now lie approximately 90 m (100 yards) apart. Prior to sinking, the ship underwent extensive cleaning, with armament, hatches, and the main mast removed to create a safer environment for divers.
Today, the Bibb rests on her starboard side, with the bow oriented north. While upper sections are accessible around 27 meters (90 ft), the wreck extends to its maximum depth of 39.6 m (130 ft) at the seabed. Exploring this impressive structure requires careful dive planning.
Best Time to Dive
Diving conditions at the U.S.C.G. Bibb Wreck vary throughout the year, with the period from February through September generally offering the most favorable experiences. During these months, the dive score is frequently rated "Good." Air temperatures during this peak season typically range from 21.7-29.3°C (71-85°F), creating comfortable surface conditions. Rainfall is relatively low in the early months, with January at 1.3 mm and May at 1.68 mm, though June sees a higher average of 6.55 mm. Water temperatures for diving are warmest from June to September, averaging 25-28°C (77-82°F), making for pleasant underwater thermal conditions. However, currents ranging from 1-2 knots are often present and can impact dive planning, especially in months like April, July, and December, which tend to have stronger current reports.
Climate Historical Averages
Monthly records compiled from satellite and marine observation nodes over the last 3 years. Data provided by Open-Meteo and MET Norway.
Dive Experience & Conditions
The U.S.C.G. Bibb Wreck presents a significant depth profile, with its shallower sections beginning around 27 meters (90 ft). The wreck then slopes down towards the seabed, reaching recreational depth limits. Divers explore the extensive structure as it rests on its starboard side, revealing various deck levels and internal features. Visibility at the site is often exceptional, with reports of up to 61 m (200 ft), largely due to the influence of the clear Gulf Stream. However, a consistent challenge at this site is the presence of strong currents, frequently reported between 1-2 knots. These currents necessitate careful planning and can, at times, render the wreck undiveable. Advanced diver training is essential here to manage the depth, current, and potential complexities of a wreck dive.
Dive Difficulty & Safety Guidelines
Expert diver tip: Prioritize advanced training before attempting to explore the U.S.C.G. Bibb Wreck. Given its depth and the frequently strong currents, an Advanced Open Water certification is considered a minimum requirement. Divers must be prepared for dynamic conditions; strong currents can shift rapidly, impacting descent, ascent, and navigation around the wreck. Planning for a potential undiveable current day is also prudent. Wreck penetration should only be undertaken by those with specialized wreck diving training and considerable experience. It's crucial to have a solid understanding of emergency procedures and to dive with a well-maintained redundant air supply. Always dive within your personal limits and in accordance with your training.
Recommended Equipment
No verified equipment items yet.
Verified equipment recommendations for this dive site are being reviewed and may be added as additional source checks are completed.
Recommended Dive Suit
With water temperatures around 26°C (79°F), many divers find a 2-3mm shorty or light wetsuit provides comfortable protection.
Divers performing multiple dives may appreciate slightly warmer protection later in the day.
Environmental conditions appear stable for the near future.
Conditions last reviewed: 18:00 using the latest environmental data.
Dive Logistics & Preparation
Hyperbaric Chamber
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Entry Requirements
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Currency
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Marine Life at Bibb
The U.S.C.G. Bibb Wreck provides a significant artificial reef structure, drawing in a variety of marine life. Its extensive metalwork and internal spaces offer shelter and hunting grounds. Divers often encounter various species of fishes congregating around the wreck. Large pelagic species may pass by in the clear Gulf Stream currents. Observers have reported sightings of grouper seeking refuge within the ship's framework and stingrays foraging on the surrounding seabed. While not consistently reported, the area is also known for sightings of sharks, turtles, and occasionally dolphins or whales, adding to the allure of this deep water site.
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Frequently Asked Questions
What is the average depth of the U.S.C.G. Bibb Wreck?
The U.S.C.G. Bibb Wreck has an average depth of 36 m (118 ft). Its upper sections are accessible around 27 m (90 ft), with the wreck extending down to a maximum depth of 39.6 m (130 ft).
What is the general visibility at the Bibb Wreck?
Visibility at the Bibb Wreck is often excellent, thanks to the clear Gulf Stream. It can frequently be as good as 61 m (200 ft), offering expansive views of the wreck structure.
What kind of currents can be expected?
Divers should expect strong currents, typically ranging from 1-2 knots. These currents are a consistent feature of the site and can make diving challenging at times, requiring careful planning.
What training level is recommended for diving the Bibb?
Due to the depth and strong currents, advanced diver training is highly recommended for the Bibb Wreck. An Advanced Open Water certification is generally considered the minimum appropriate certification level.
When was the U.S.C.G. Bibb sunk?
The U.S.C.G. Bibb was decommissioned in 1985 and purposefully sunk as an artificial reef on November 28, 1987. It rests near its sister ship, the Duane, off the Florida Keys.
Is wreck penetration allowed on the Bibb?
Wreck penetration into the Bibb is only advised for divers with specific wreck diving training and substantial experience. Proper equipment, including powerful lights and redundant air, is essential for such ventures.
What marine life can be seen at the Bibb?
The wreck attracts various marine life, including grouper, rays, and stingrays often seen near the structure. There are also reports of general fish species, and occasionally larger pelagics like sharks or turtles.
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