Aquarius Underwater Laboratory is a unique research facility situated in the United States. Divers access this site by boat to observe the structure, which sits at a depth of 3 to 6 metres. The location offers visibility ranging from 10 to 30 metres, providing clear views of the laboratory and its surrounding environment. With water temperatures typically between 25 and 30C, the site is suitable for beginner divers. As an active research station, it provides a distinct experience for those interested in underwater habitats and marine science. Please note that conditions at this site can vary.

Davis Reef is a marine site located 7242 metres from shore near Islamorada. The reef structure ranges from 5 to 18 metres in depth, with an average of 7 metres, making it suitable for intermediate divers. Access is by boat only, and the site supports night diving. Visibility typically fluctuates between 10 and 30 metres, with mild currents present. Divers should be aware of boat traffic, jellyfish, and sharp coral. Species recorded around this area include barracuda, nurse sharks, angelfish, moray eels, and various wrasses. Please note that recent high water temperatures have caused widespread coral bleaching and mortality in the Florida Keys, which may impact current reef health.

Pickles Reef is a combination of natural hard and soft coral formations and artificial reef structures located within the Molasses Reef Area. The site features depths ranging from 6 to 30 metres, with an average depth of 15 metres. Divers experience mild currents and visibility typically between 15 and 60 metres. Access is by boat only, situated approximately 8500 metres from shore. The site is suitable for beginners, though caution is required regarding sharp coral and rocky structures. Maintaining neutral buoyancy is essential to avoid contact with the seabed. Water temperatures remain between 24 and 28 degrees Celsius throughout the year.

Barrier Reef Deep at Davis Reef features a distinct wall and drop-off topography. The site ranges from 18 to 27 metres in depth, with an average of 23 metres. Access is exclusively by boat, as the site is located 5000 metres from shore. Divers should be prepared for moderate currents and potential boat traffic in the area. Due to the depth and current, this site is suited for intermediate divers. Visibility typically fluctuates between 12 and 30 metres. Divers should exercise caution regarding sharp coral and the presence of sharks in the marine environment.

The USCG Bibb is a decommissioned US Coast Guard cutter resting upright on a sand bottom. The main deck sits at approximately 29 metres, with the keel reaching 40 metres. This site is strictly for advanced divers due to the depth and the strong currents that frequently affect the area. Boat access is required, and divers should use a surface marker buoy. Visibility typically ranges from 10 to 30 metres. Divers must manage buoyancy carefully and remain aware of entanglement risks within the wreck structure. Current strength and direction shift with the tide, necessitating careful planning for descent and ascent.

Davey Crocker Reef is a shallow reef located near Hen and Chickens Reef in Islamorada. This site is suitable for beginners and snorkellers, offering depths ranging from 10 to 29 metres with an average of 9 metres. Access to the reef is by boat only, as it is situated approximately 8,850 metres from the shore. Divers and snorkellers can expect mild currents and visibility between 9 and 21 metres. Water temperatures fluctuate throughout the year, ranging from 23C in the winter months to 29C in August. Hazards at this location include sharp coral, the risk of decompression, and nitrogen narcosis.

Hen and Chickens Reef is a marine site located 4828 metres from shore near Islamorada. The reef is characterised by a large central coral head surrounded by smaller coral formations. This site is suitable for beginners and accessible only by boat. Divers and snorkellers can expect depths ranging from 12 to 22 metres, though the reef structure itself includes shallower sections between 1.5 and 6 metres. Conditions generally feature mild currents and visibility between 10 and 30 metres. Water temperatures fluctuate between 24C and 30C throughout the year. Hazards at this location include boat traffic, jellyfish, low visibility, and sharp coral.

Crocker Reef is a marine site located near Hen and Chickens Reef in the United States. This reef and wall site is accessible only by boat, situated approximately 8850 metres from the shore. Divers can expect depths ranging from 9 to 34 metres, with an average depth of 9 metres. Conditions are characterised by mild currents and visibility between 10 and 30 metres. Water temperatures fluctuate throughout the year, ranging from 23C in January and February to 29C in August. Due to the depth and potential for strong currents and boat traffic, divers should exercise caution. The site is suitable for those comfortable with boat-based diving in an open marine environment.