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.

Angel Reef is a marine dive site located off Culebra Island, Puerto Rico. The site features a consistent depth of approximately 9 metres. Conditions at this location are influenced by water temperatures that range from 27C to 30C throughout the year. Given the shallow depth, the site is accessible for various skill levels. Divers should be prepared for variable conditions typical of this region. As a marine environment, the site offers a standard coastal topography for exploration. Access to this site is typically managed via boat from Culebra Island.

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.

The Trench is a reef site located off Culebra Island, Puerto Rico, accessible only by boat. The site features a consistent depth of approximately 8 metres, making it suitable for beginners. Divers and snorkellers can expect mild currents and visibility ranging from 5 to 15 metres. Water temperatures remain warm throughout the year, fluctuating between 27C and 30C. Typical dives last around 40 minutes. Hazards at this location include the presence of jellyfish and sharp coral. As a shallow reef environment, it offers a straightforward experience for those looking to explore the local marine topography.

Palomino's Wall features a combination of a shallow reef and a vertical drop-off, offering varied terrain between 5 and 24 metres. Divers typically experience mild currents, allowing for a relaxed pace along the wall face. Visibility ranges from 10 to 30 metres, with optimal light penetration occurring during mid-morning hours. Water temperatures remain consistent between 27 and 30 degrees Celsius throughout the year. Boat access is required for this site, and divers should coordinate logistics with local operators. Species recorded around this area include French Angelfish, Purple Sea Fans, Redband Parrotfish, Flamingo Tongues, Blue Tang, Stoplight Parrotfish, Peacock Flounder, Pacific Trumpetfish, Whiptail Stingrays, various wrasses, Yellowtail Snapper, combers, White Grunt, and Queen Conch.

Palominito's Wall and Sandslide is a marine reef and wall site located off Culebra Island. Access is by boat only, and the site is suited for intermediate divers due to the potential for strong currents. Depths range from 17 to 32 metres, with an average depth of 17 metres. Visibility typically spans 15 to 30 metres. Water temperatures remain warm throughout the year, ranging from 27C to 30C. Species recorded around this area include French Angelfish, Purple Sea Fans, Redband Parrotfish, Flamingo Tongue, Blue Tang, Wrasses, Whiptail Stingrays, Peacock Flounder, Pacific Trumpetfish, Stoplight Parrotfish, Queen Conch, Combers, White Grunt, and French Grunt. Divers should be aware of sharks and strong currents.

Sand Slide is a marine site located off Culebra Island, Puerto Rico, characterised by two distinct sandy slopes and a reef running along one side. The topography offers a varied profile, with depths ranging from 5 to 24 metres. Access to this site is by boat only. Divers and snorkellers should be aware of moderate currents and the presence of sea urchins in the area. The site is suitable for various skill levels, with typical dives lasting approximately 45 minutes. Water temperatures remain warm throughout the year, fluctuating between 27C and 30C.

Devils Key is a shallow reef dive located off Culebra Island, Puerto Rico. The site features a maximum depth of 55 feet, making it accessible for divers of various experience levels. As a local reef site, it offers a varied underwater topography suitable for those looking for a relaxed dive. Water temperatures at this location range between 27C and 30C throughout the year. Divers should be prepared for variable conditions typical of the region. The site is primarily accessed by boat from the surrounding area.