Diving atCauseway Reef #21 (United States)
Descending into the waters off Florida's southeast coast reveals Causeway Reef #21, an intricate part of a vast natural reef system. Divers will find themselves drifting along ancient geological formations, where coral growth has re-established itself on submerged sand dunes.
As evening covers Causeway Reef #21, the local air temperature is measured at 25.9°C. The current wave height at the surface is recorded at 0.26m. These late-day readings characterize the surface conditions for the night.
Dive Site Coordinates
26.3817, -82.0203
Dive Site Overview
Causeway Reef #21 forms a segment of the extensive South East Florida Reef Tract, a continuous structure stretching parallel to the shoreline. This natural reef system originated from lithified sand dunes that became submerged as sea levels rose after the last glacial period.
While not all areas display all three typical reef formations (inner, middle, outer), the site contributes to a diverse underwater topography, offering varied exploration opportunities. Geological history is evident in collapsed features on the reef top, believed to be framework collapses now covered with sand. These formations create characteristic ledges that divers can explore.
Regionally, reefs here are easily accessible, often requiring only short boat rides from shore. Depths across the broader tract vary significantly, ranging from approximately 4.5 m to 40 m (15 ft to 130 ft), making various sections suitable for different certification levels.
Recreational divers will find numerous suitable depths within this expansive reef system, experiencing a dynamic underwater environment.
Best Time to Dive
Planning a dive at Causeway Reef #21 often centers on optimizing underwater visibility and comfortable surface conditions. The months of May and July frequently offer excellent dive conditions, correlating with lower average wave heights around 0.35-0.48 m (1.1-1.6 ft) and pleasant air temperatures peaking at 26-28°C (79-82°F). Rainfall is generally moderate during these periods, with July seeing around 4.8 mm and May around 2.0 mm, reducing the likelihood of significant runoff impacting clarity. While specific water temperature data for Causeway Reef #21 isn't consistently reported, the Gulf Stream often bathes these coral reefs in warm, clear water. Throughout the year, dive conditions generally remain good, with air temperatures ranging from 17-28°C (63-82°F) and average wave heights typically below 0.85 m (2.8 ft).
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
Entering the water at Causeway Reef #21, divers quickly notice prevailing currents running parallel to the shoreline. Drift diving becomes a common and efficient approach here, enabling exploration of larger reef sections without excessive effort. The Gulf Stream often influences these waters, contributing to clear conditions and warmer temperatures, typically around 22-27°C (72-81°F). While specific depths for this particular reef vary, the broader tract includes sections accessible to recreational divers, offering a range of underwater environments. Unique geological history presents ledges formed from ancient framework collapses, now colonized by modern corals. Such formations offer numerous hiding spots and intriguing contours to explore as you move with the current, providing dynamic visual interest.
Dive Difficulty & Safety Guidelines
While specific hazards for Causeway Reef #21 are not consistently reported, general safety protocols apply. Divers should remain aware of potential strong currents, a common feature along this reef tract; drift diving is often the recommended technique. It's crucial to plan dives within certified limits and monitor no-decompression limits carefully. Always dive with a buddy and ensure proper buoyancy control to protect the delicate coral ecosystems. No specific environmental threats or unique local hazards are listed for this site, but vigilance regarding boat traffic is always advised near coastal dive locations.
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
Exposure protection is partly a personal preference.
3mm wetsuit typically provides a reliable level of thermal protection for dives here. A hood or vest is suggested for sensitive divers due to surface winds. Weather models currently point toward consistent diving conditions over the next several days.
Water temperatures across the dive area at Causeway Reef #21 are presently estimated to be around 25°C (77°F). Surface air temperatures are resting at 26°C (79°F).
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 Causeway Reef #21
Gliding along Causeway Reef #21, divers will first notice the vibrant reformations of coral atop older reef structures. The South East Florida Reef Tract is known for its ecological richness, supporting over 40 species of reef-building corals. You'll observe hundreds of fish species flourishing throughout the reef's ledges and formations. Encounters with tropical fish are common. Depending on the season and specific conditions, divers might also spot various turtles, rays, and different shark species moving through the area. This reef serves as a vital habitat for a diverse marine community.
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Frequently Asked Questions
What kind of reef is Causeway Reef #21?
Causeway Reef #21 is part of the natural South East Florida Reef Tract. It's built upon ancient lithified sand dunes where corals have reformed over thousands of years, creating unique ledges and formations.
What is the typical depth range for this reef?
While the exact depth for Causeway Reef #21 specifically isn't detailed, the broader reef tract includes dive sites ranging from approximately 4.5 m (15 ft) in shallower sections to over 40 m (130 ft) in deeper areas. Recreational divers will find suitable depths throughout the tract.
Are currents usually present at Causeway Reef #21?
Yes, prevailing currents often run parallel to the shoreline along this reef tract. Drift diving is a common and often preferred method to explore larger sections of the reef.
What marine life can I expect to see?
This reef system supports over 40 species of reef-building corals and hundreds of fish species. Divers often encounter tropical fish, and it's possible to see turtles, rays, and various sharks.
When is the best time of year to dive here?
May and July often present excellent dive conditions due to lower wave heights and comfortable air temperatures. However, good dive conditions are generally maintained throughout the year in this region.
Is Causeway Reef #21 suitable for new divers?
Sections of the broader reef tract are suitable for recreational divers. However, given the potential for currents, new divers should ensure they are comfortable with drift diving techniques or dive with experienced guides.
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