Diving atMontgomery Reef (United States)
Montgomery Reef functions as a foundational artificial reef in the United States, positioned approximately 8.5 miles (13.7 km) from the St. Johns River jetties in Jacksonville, Florida. Its approximate coordinates are 30.44650, -81.22000. Originally a natural depression, this site evolved into one of the earliest purpose-built artificial reef projects in the area, offering a complex underwater structure for marine life.
Starting the day at Montgomery Reef, the ambient air temperature is recorded at 22.3°C. Ongoing monitoring shows wave heights measuring 0.56m. This data represents the current surface conditions for early activities.
Dive Site Coordinates
30.4427, -81.2203
Dive Site Overview
Exploring Montgomery Reef reveals a fascinating blend of human ingenuity and natural marine processes, standing as the Jacksonville Offshore Sport Fishing Club's initial artificial reef endeavor. Descending into this unique site, divers will discover remnants of its unconventional beginnings, with scattered appliances and miscellaneous junk now forming integral parts of the habitat.
A significant addition includes a barge laden with concrete culverts, enhancing the reef's structural complexity. At the northern end of the area, a distinct ledge, approximately 0.9 to 1.2 meters (3 to 4 feet) in height, presents an additional feature to navigate.
The natural depression here reaches depths of 23 to 24 meters (76 to 78 feet), making it the deepest point within a nine-mile radius from the St. Johns River. These varied structures provide critical shelter and foraging grounds, supporting diverse marine ecosystems.
Best Time to Dive
Optimal diving conditions at Montgomery Reef often present themselves across several months, notably during January, February, April, May, June, July, August, and November, which consistently report a 'Good' dive score. Air temperatures during these periods generally range from 12.69°C (55°F) in January to highs of 27.68°C (82°F) in August, influencing surface comfort before and after dives. While specific water temperature data for Montgomery Reef isn't consistently reported, prevailing air temperatures can indicate a need for appropriate thermal protection, especially outside of peak summer. During these favorable months, wave heights typically average below 1 meter (3.3 feet), and wind speeds tend to be more moderate, around 26-30 km/h (16-19 mph), contributing to calmer surface conditions. Rainfall is also generally lower, ranging from 1.32 mm (0.05 inches) in November to 5.75 mm (0.23 inches) in August, minimizing runoff and potential visibility impacts.
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
Diving at Montgomery Reef primarily involves exploring a depth profile that varies from shallower sections of the reef structures to a maximum depth within the natural depression of 23-24 meters (76-78 feet). Divers will navigate through an artificial landscape comprised of concrete culverts, the mentioned natural ledge, and various other materials that have contributed to its growth over time. The site's character as an artificial reef means encountering an array of submerged objects, which now serve as habitat. Water temperatures for this specific site are not consistently reported, however, based on regional climate, surface water temperatures generally align with seasonal air temperature patterns, which can vary from cooler in winter to warmer in summer months. Visibility fluctuates depending on recent weather and currents, but often allows for clear views of the reef's varied architecture.
Dive Difficulty & Safety Guidelines
Approaching Montgomery Reef requires divers to maintain heightened situational awareness due to its composition as an artificial reef. Given the presence of miscellaneous junk and older materials, there's a potential for sharp edges or entanglement hazards, necessitating excellent buoyancy control and careful finning techniques. Always dive with a reliable buddy and carry cutting tools as a precaution. As a popular fishing location, boat traffic in the vicinity can occur, so deploying a surface marker buoy (SMB) upon ascent is a wise safety practice. Prior to your dive, consult local dive operators for the most current conditions and any temporary advisories affecting the site. Adhering to responsible diving practices, such as avoiding contact with the reef structures, helps preserve this unique underwater environment.
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
Recent conditions suggest the water at Montgomery Reef remains near 22°C (71°F), offering typical conditions for the area. Surface air temperatures are resting at 22°C (72°F).
The next few days appear likely to bring similar environmental conditions.
Most divers exploring waters at this temperature rely on 3-5mm wetsuit for effective insulation. A hood or vest is suggested for sensitive divers due to surface winds. Surface intervals may feel cooler. Water temperature is only one factor influencing overall comfort during a dive.
Conditions last reviewed: 08:00 using the latest environmental data.
Dive Logistics & Preparation
Hyperbaric Chamber
Check local United States medical facilities.
Entry Requirements
View United States Visa Hub
Currency
USD
Nearest Airports
Nearest airports to help plan travel to this dive area.
Marine Life at Montgomery Reef
Montgomery Reef's diverse structural composition, incorporating accumulated culverts and other materials, establishes a complex underwater landscape conducive to marine life. This artificial environment successfully attracts a variety of fish species, thriving within protective nooks and crannies formed by submerged structures. Extensive surface area provided by these artificial elements allows sessile invertebrates to colonize, creating microhabitats that support a broader ecosystem. While specific species reports vary, the site generally functions as a productive feeding and shelter ground, contributing to localized biodiversity and supporting the 'good fishing' reported throughout the year.
Dive Centers Near Montgomery Reef
No Dive Centers Local To Montgomery Reef
Are you a dive center visiting this location? Get listed to reach divers.
Frequently Asked Questions
What is Montgomery Reef?
Montgomery Reef is an artificial reef located off the coast of Jacksonville, Florida, United States. It began as a natural ocean floor depression and was significantly augmented with various materials, including concrete culverts and recycled items, to create marine habitats.
What is the typical depth at Montgomery Reef?
The dive site features a natural depression that reaches depths of 23-24 meters (76-78 feet). Divers can expect to explore areas ranging from shallower reef sections down to this maximum depth.
What kind of structures can divers expect to see?
Divers will encounter a range of artificial structures, including concrete culverts and various older materials that have been repurposed to form the reef. There is also a natural ledge, 0.9 to 1.2 meters (3 to 4 feet) high, in the northern part of the site.
Is Montgomery Reef suitable for beginner divers?
While parts of the reef are within recreational depth limits, the presence of varied structures and potential entanglement hazards suggests that confident buoyancy control is beneficial. Consulting with local dive operators is recommended to assess current conditions and suitability for your experience level.
What are the water conditions like at Montgomery Reef?
Specific water temperature data is not consistently reported for this site. However, air temperatures range from cooler in winter to warmer in summer, indicating seasonal variations in water temperature. Visibility varies based on weather and current conditions, but is often good.
What marine life might I encounter at Montgomery Reef?
The diverse structures of the artificial reef create a rich habitat, attracting a variety of fish species seeking shelter and food. While specific species reports vary, the site is known to support local marine biodiversity and is considered a good location for fishing.
Liveaboards Sailing to Montgomery Reef
Explore highly rated liveaboards visiting this dive site and discover the best routes in United States.
Resorts & Accommodation
Find partner hotels and dive resorts directly accessing the reef.
Around This Area
Explore top-rated restaurants, activities, and attractions near Montgomery Reef reviewed by travelers.
Planning to dive Montgomery Reef?
Send one inquiry and receive offers directly from the best verified local dive operators.