The USS S-16 is a shallow wreck dive located in the Florida Keys, resting in depths between 0 and 2 metres. This site is accessible by boat and offers visibility ranging from 10 to 30 metres, allowing for clear views of the structure from the surface. Water temperatures remain consistent, fluctuating between 26C and 30C throughout the year. Divers should be aware of a moderate current that moves through the area, which can be challenging for those less experienced. It is recommended to time entries around slack tide to manage the current effectively. Always check locally for current boat access arrangements and facility information before planning a dive.

Western Dry Rocks is a combined natural and artificial reef located near Sand Key. The site features a varied topography with depths ranging from 5 to 40 metres, averaging 30 metres. Divers typically experience visibility between 10 and 30 metres. While currents are generally mild, they can strengthen without warning, requiring divers to monitor conditions closely. Boat access is required to reach this site, which is suitable for beginner divers. Water temperatures remain between 24 and 28 degrees Celsius throughout the year. Divers should remain aware of their surroundings due to the presence of sharks at this location.

Sand Key Lighthouse is a marine reef site located within the Florida Keys Marine Sanctuary. The topography features the characteristic spur and groove formations of a sandy bottom, with depths ranging from 5 to 27 metres. The site is notable for its historical iron screw piling foundation, which dates back to 1853. Access is by boat only, and the site is suitable for beginners. Divers should be aware of boat traffic and sharp coral. Water temperatures range from 25C to 29C, though recent high temperatures have caused coral bleaching and mortality in the area. The site is available for night diving, with typical dives lasting 50 minutes.

Rock Key is a reef and wreck site located near Sand Key, United States. Divers typically explore the area at depths ranging from 5 to 11 metres, with an average depth of 10 metres. The site is accessible only by boat, situated approximately 12,872 metres from the shore. Conditions are generally mild with visibility ranging from 10 to 30 metres. The water temperature fluctuates between 25C and 30C throughout the year. The site is suitable for beginners, with typical dives lasting around 50 minutes. Divers should be aware of sharp coral present in the area. Boat charters are available for those planning to visit this location.

Ball and Chain is a shallow reef site located at Sand Key, reaching a maximum depth of 11 metres. This site is suitable for beginner divers due to the mild currents and manageable conditions. Access is by boat only, and divers should be aware that boat traffic is common in the area. To ensure safety, maintain high visibility and remain close to your boat or dive flag throughout the dive. Perform a cautious, controlled ascent, especially when concluding your dive. Water temperatures at this location range from 23 to 30 degrees Celsius throughout the year.

Eastern Dry Rocks is a shallow reef and wreck site located near Sand Key, United States. With depths reaching a maximum of 10 metres and an average of 6 metres, the site is well-suited for beginner divers. Access is by boat only, and the site is situated approximately 9656 metres from shore. Visibility typically ranges from 10 to 30 metres. Water temperatures remain between 25 and 29 degrees Celsius. Divers should exercise caution regarding sharp coral and rocks, maintaining buoyancy control to avoid contact with the seabed. High water temperatures in the summer of 2023 resulted in widespread coral bleaching and mortality across the Florida Keys.

Cottrell Key is a shallow site located near Sand Key, featuring a mix of natural reef, artificial structures, and seagrass beds. Depths range from 2 to 7 metres, making it suitable for beginners. The area serves as a nursery for juvenile snapper, parrotfish, grunt, and barracuda, alongside batfish and mangrove crabs. Access requires a boat, as the site is situated 14.5 kilometres from shore. Visibility is variable, ranging from 5 to 23 metres, and currents are generally mild. Divers and snorkellers should exercise caution around sharp coral and rocks. Water temperatures are warm throughout the year, fluctuating between 23 and 31 degrees Celsius.

Fort Zachary Taylor features a series of rock breakwaters that serve as an artificial reef system. Located in Key West, this site is accessible directly from the shore, with entry recommended at the eastern end of the beach. The area is suitable for beginners, offering depths ranging from 1 to 8 metres with an average of 3 metres. Conditions vary, with visibility typically between 3 and 10 metres and moderate currents. Hazards include surf, sharp coral, sea urchins, jellyfish, and low visibility. Facilities available at the site include parking, toilets, showers, equipment rental, a cafe, and first aid.