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.

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.

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.

Sand Key is a marine site featuring both natural reef and artificial reef structures. Located 11 kilometres from shore, this site requires boat access. Divers can expect mild currents and visibility ranging from 10 to 30 metres. Depths at the site vary significantly, spanning from 4 to 94 metres with an average depth of 30 metres. The site is suitable for beginners, though conditions can vary. Water temperatures fluctuate between 20C and 25C throughout the year. Please note that recent high water temperatures have caused widespread coral bleaching and mortality in the Florida Keys, which may affect current coral health and cover.

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.

The Cayman Salvager is a 187-foot shipwreck located 11 kilometres off Key West. Originally built in 1936 as a U.S. Army mine layer, the vessel was sunk as an artificial reef in the 1980s. The wreck sits at depths ranging from 6 to 29 metres, with an average depth of 25 metres. This site is intended for advanced divers due to strong currents, potential for nitrogen narcosis, and overhead environments. Boat access is required to reach the site, where visibility typically ranges between 10 and 30 metres. Divers should be aware of hazards including boat traffic, decompression requirements, entanglement risks, and the presence of stonefish.

The Vandenberg Wreck is an artificial reef located 11265 metres from shore, requiring boat access. This site is intended for advanced divers due to its deep profile and overhead environment. Depths range from 3 to 27 metres, with an average depth of 22 metres. Divers should be prepared for moderate currents and visibility typically between 15 and 30 metres. The site features a wreck structure that provides a complex environment for exploration. Facilities available in the area include parking, showers, air fills, dive shops, boat charters, and gear storage. Typical dive times at this location are approximately 40 minutes.