Crater Jr. is a shallow reef site located at Hen and Chickens Reef, reaching a maximum depth of 16 metres. The topography is defined by spur and groove coral formations, which create natural channels and structures to navigate. This site is suitable for beginners due to the manageable, mild currents. Access is by boat only, and divers should arrange transport and equipment with a local operator in advance. Water temperatures remain warm throughout the year, ranging from 24 to 30 degrees Celsius, making a light wetsuit or skin suit appropriate for most visits. Visibility at the site is variable, so checking local reports before departure is recommended.

Captain Arnos Reef is a shallow reef located at Hen and Chickens Reef, offering depths between 0 and 11 metres with an average of 8 metres. This site is suitable for beginners and accessible only by boat, situated 3200 metres from shore. Conditions are generally comfortable with mild currents and a consistent visibility of 14 metres. Divers and snorkellers should exercise caution regarding sharp coral and the presence of lionfish; protective gear is recommended. The site is also suitable for night diving, which allows for observation of nocturnal activity across the reef structure.

Jumpin Mack is a reef site located at Hen and Chickens Reef, Islamorada, offering a manageable dive for beginners. The site features a reef structure at depths between 13 and 16 metres. Conditions are generally characterised by mild currents, though visibility can vary significantly. Access is exclusively by boat, and divers must remain vigilant due to heavy boat traffic in the area. It is essential to deploy a surface marker buoy and maintain awareness during all ascents and safety stops. The site is suitable for year-round diving, with water temperatures ranging from 24C to 30C depending on the month.

Late for Lunch is a reef site defined by spur and groove coral formations. Parallel ridges of coral separated by sandy channels create a clear layout for divers and snorkellers. Depths range from 2 to 15 metres with an average of 10 metres. Visibility typically spans 15 to 30 metres, allowing for easy navigation of the structure. Access is by boat only, located 8000 metres from shore. The site features mild currents, though divers should remain aware of boat traffic and use a surface marker buoy. Water temperatures range from 24C to 30C throughout the year.

Jeri's Joint is a reef site located at Hen and Chickens Reef, offering depths between 10 and 20 metres with an average of 15 metres. This site is accessible by boat and features mild currents, making it suitable for beginner divers. Visibility typically ranges from 10 to 25 metres. Divers should maintain controlled buoyancy to avoid contact with the substrate, as sharp coral and rocks are present throughout the area. The site is suitable for night diving, with typical dive durations of 60 minutes. Water temperatures fluctuate between 24C and 29C throughout the year.

Fingers is a reef site located at Hen and Chickens Reef in the United States. This site features a consistent depth of 10 metres and is accessible by boat. Conditions are generally mild, with water temperatures ranging from 25C to 30C throughout the year. The site is suitable for beginners looking for a straightforward reef experience. Divers and snorkellers should remain aware of boat traffic in the area and the presence of lionfish. The site offers a reliable marine environment for both diving and snorkelling activities.

Maze is a reef and artificial reef site located at Hen and Chickens Reef near Islamorada. This site is suitable for beginners, offering an average depth of 6 metres with a range of 4 to 9 metres. Access is by boat only, as the site is situated 3,200 metres from the shore. Divers can expect mild currents and visibility ranging from 15 to 25 metres. Water temperatures fluctuate between 24C and 30C throughout the year. Hazards at this location include sharp coral and stonefish. Typical dives at this site last approximately 50 minutes.

Hamm is a shallow reef site located at Hen and Chickens Reef, Islamorada. With depths ranging from 7 to 10 metres, it is well-suited for beginner divers. Access is by boat only, and the site features mild currents and visibility between 5 and 12 metres. Divers should maintain neutral buoyancy to avoid contact with sharp coral and rocks present throughout the reef. The site supports night diving, which provides opportunities to observe lobsters and crabs that emerge after dark. Species recorded around this area include nurse sharks, green sea turtles, various angelfish, wrasses, and blue tangs. Ensure all air fills and equipment are prepared before departure as no facilities are confirmed on-site.