Diving atBibb (United States)
The USCG Bibb wreck offers a challenging, deep dive experience that demands advanced skills. Strong, often variable currents are a consistent factor here, necessitating thorough planning. This artificial reef, resting on its starboard side, descends to a maximum depth of approximately 40 m / 130 ft. It ranks as Key Largo's deepest and most advanced artificial reef; the highest part of the wreck, the port gunnel railing, reaches up to about 29 meters.
Tonight's objective overview for Bibb shows an air temperature of 25.1°C. The measured surface conditions include wave heights around 0.6m. This environmental data is logged for the close of the day.
Dive Site Coordinates
24.5971, -80.2277
Key Dive Site Facts
Dive Site Overview
A significant place in maritime history belongs to the USCG Bibb, having served nearly 50 years before its new mission as an artificial reef. Commissioned in 1936, this 327-foot (100-meter) Treasury-class Coast Guard cutter saw extensive action across multiple conflicts.
During World War II, it was heavily involved in the Battle of the Atlantic, diligently escorting convoys and protecting them from German U-boat attacks. The vessel later provided crucial support in the Pacific Theater, notably during major military campaigns including the Battle of Okinawa. Bibb's legacy continued into the Vietnam War, where it was again called into service, solidifying its reputation for versatility and reliability.
Following decommissioning in 1985, the ship was meticulously prepared to meet environmental and safety standards, then intentionally sunk on November 28, 1987, off the coast of Key Largo, Florida. Today, the USCG Bibb wreck rests on its starboard side in deep water, an orientation providing divers with a remarkably different perspective compared to many other upright wrecks found in the Florida Keys.
Best Time to Dive
Minimizing surface chop and current intensity generally leads to optimal conditions for diving the USCG Bibb, often occurring during the warmer months. Historically, May through September offers the most favorable dive conditions, marked by "Good" dive scores in system data. During these months, average air temperatures range from 26.9-29.3°C / 80-85°F, and wind speeds tend to be lower, contributing to calmer surface conditions. Rainfall varies; May and July often see less rain, averaging around 1.45-2.46 mm, while June, August, and September can experience higher precipitation, averaging 4.11-4.67 mm. Water temperatures recorded at the site typically range between 17.8-28.9°C / 64-84°F throughout the year, but tend to be warmer during the peak diving season. October through April generally present "Moderate" dive scores due to higher wave heights and increased wind speeds, which can make entries and exits more challenging and currents more pronounced.
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
Current dynamics around the Bibb wreck can be a significant factor, with reports indicating speeds typically between 1 to 2 knots. These currents can fluctuate, sometimes becoming extremely challenging, requiring divers to be proficient in drift or strong current diving techniques. Visibility at the site is consistently reported as good to excellent, often extending to 25 meters (82 feet), allowing clear views of the extensive wreck structure. The USCG Bibb’s unique orientation on its starboard side provides an unusual and intriguing perspective for exploration. Its port gunnel railing, the highest part of the wreck, rises to about 29 meters, with the structure descending much deeper. Water temperatures vary depending on the season, typically ranging from 17.8-28.9°C / 64-84°F, suggesting thermal protection should be chosen based on individual comfort and time of year.
Dive Difficulty & Safety Guidelines
Approaching the USCG Bibb requires a diver skill level of Advanced Open Water due to its depth and the common presence of strong currents. Before entering the water, a thorough dive briefing is essential, covering current direction, precise descent and ascent techniques, and specific emergency protocols. Your dive plan for this wreck should always be customized to the day's conditions, acknowledging the dynamic nature of the site. Divers often complete PADI specialty dives here, such as Wreck Diver, Deep Diver, and Underwater Navigation, which can enhance safety and exploration capabilities. Understanding and respecting the site's challenging environment ensures a safer and more rewarding experience; don't underestimate the potential for challenging conditions.
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 27°C (81°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
Though specific, consistent reports are limited, divers exploring the USCG Bibb have encountered various marine life. Sightings have included different species of fish, including groupers, which often find refuge within the wreck's structure. Rays and stingrays are also occasionally observed cruising the surrounding sandy bottom or resting near the ship. While some diver reviews suggest limited marine life, others highlight memorable encounters with these larger species, indicating observations can vary depending on the time of year and specific dive conditions.
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Frequently Asked Questions
What is the maximum depth of the USCG Bibb wreck?
The USCG Bibb rests at a maximum depth of approximately 40 meters (130 feet). The shallowest part of the wreck, at the port gunnel railing, is around 29 meters.
What certification level is required to dive the Bibb?
This is considered an Advanced Open Water dive site due to its depth and the potential for strong currents. Divers should possess the skills and experience for challenging deep wreck environments.
Are strong currents common at the Bibb wreck?
Yes, strong currents are common at the USCG Bibb, typically ranging from 1 to 2 knots. These can be challenging and require experienced diving skills and careful planning.
What is the visibility usually like at the dive site?
Visibility at the USCG Bibb is frequently reported as good to excellent, often extending beyond 25 meters. This allows for clear views of the extensive wreck structure during dives.
What makes the USCG Bibb wreck unique?
Its unique feature is its sideways orientation, resting on its starboard side. This provides divers with a distinct perspective compared to most other upright wrecks found in the Florida Keys.
What kind of marine life might I see on the Bibb?
Divers have reported seeing various fish species, including groupers, which often utilize the wreck for shelter. Rays and stingrays are also occasionally observed around the site, though sightings can vary.
What is the history of the USCG Bibb?
The USCG Bibb was a Treasury-class Coast Guard cutter commissioned in 1936, serving with distinction in World War II and the Vietnam War. It was intentionally sunk as an artificial reef off Key Largo, Florida, on November 28, 1987.
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