Cayo Real is a reef site located off Culebra Island, Puerto Rico, offering depths between 7 and 12 metres. The site features coral and rock formations that host various marine life, including common Sally Lightfoot crabs, uncommon wrasses, purple sea fans, sergeants, and rare soldierfish and queen conch. Snails are very common throughout the area. Divers experience mild currents and consistent visibility of 30 metres. Access is by boat only, and the site is suitable for beginners. Night diving is available, providing an opportunity to observe nocturnal activity. Divers should remain aware of boat traffic and potential rip currents near reef edges, while maintaining buoyancy to avoid contact with sharp coral structures.

Rompe Olas is a reef site located off Culebra Island, Puerto Rico, offering depths between 25 and 45 metres. The site is accessible by both shore and boat, featuring mild currents and visibility typically ranging from 5 to 10 metres. It is suitable for beginner divers. Species recorded around this area include Indian Lionfish, Cushion Sea Star, Purple Sea Fan, Wrasses, Sally Lightfoot Crab, Sergeants, and various snails. Water temperatures at the site fluctuate between 26C and 30C throughout the year.

Roosevelt Roads, located off Culebra Island, features a combination of reef structures and seagrass beds. The site ranges from 9 to 24 metres in depth, with an average of 15 metres. Divers can expect moderate currents and visibility between 15 and 30 metres. Entry is possible from both shore and boat, though caution is required regarding sharp rocks and coral during shore entries. Due to active boat traffic in the area, divers should deploy a surface marker buoy before ascending. Water temperatures range from 27 to 30 degrees Celsius throughout the year. This site is suited for intermediate divers, with typical dive times lasting approximately 45 minutes.

Lana's Cove in Culebrita offers a combination of reef and wreck topography suitable for beginner divers. The site ranges from 6 to 18 metres in depth, with an average of 10 metres. Divers can expect mild currents and visibility between 15 and 25 metres. The area features cavern and swim-through sections, requiring proper training for entry. Due to the location 500 metres from shore, boat access is required. Divers should exercise caution regarding sharp coral and active boat traffic in the vicinity. Guided tours, equipment rental, and air fills are available through local operators.

Windows Reef is a marine site located off Culebrita, Puerto Rico, featuring a reef structure that tops out at approximately 8 metres. The site reaches depths of 8 to 15 metres, with an average depth of 10 metres. Access is by boat only, situated 1000 metres from shore. Snorkellers should be prepared for moderate currents and visibility ranging from 10 to 25 metres. Hazards include sharp coral and sea urchins, requiring careful placement of hands and fins. Due to variable conditions and moderate flow, snorkellers should remain close to the entry point and monitor water clarity throughout the session.

Cayo Lobo is a marine cave site located off Culebra Island, Puerto Rico, characterised by sloping terrain and large boulders. This site is strictly for advanced divers due to the presence of strong currents. Access is by boat only. The site reaches depths of up to 14 metres, with visibility ranging from 1 to 18 metres. Water temperatures remain warm throughout the year, fluctuating between 27C and 30C. Divers should be prepared for challenging conditions and ensure they have the necessary experience to manage the currents encountered at this location.

Cayo del Agua, located off Culebrita, features a combination of natural reef and artificial reef structures. This site is suitable for beginners, with depths ranging from 9 to 20 metres and an average depth of 15 metres. Visibility typically spans 15 to 30 metres, assisting with orientation. Access is by boat only, with the site situated 1000 metres from shore. While currents are generally mild, they can become strong, and divers should remain vigilant for boat traffic during ascents. Night diving is available at this location. Water temperatures remain between 27 and 30 degrees Celsius throughout the year.

The Ledges is a shallow reef located off Culebrita, Puerto Rico, featuring a depth range of 2 to 11 metres with an average of 8 metres. This site is accessible only by boat and is suitable for beginner divers due to the mild currents. Visibility at the site typically ranges from 15 to 40 metres. Water temperatures remain between 27 and 30 degrees Celsius throughout the year. Divers should maintain good buoyancy control to avoid contact with sea urchins, which are present on the reef. Typical dives at this location last approximately 45 minutes.