The Arch at Culebrita is a reef and cave site defined by a large overhang and swimthrough located at a depth of approximately 6 metres. The site reaches a maximum depth of 15 metres, with an average depth of 10 metres. Divers can explore the structure, which features coral and sponge growth on the ceiling. Historical debris is present, including several 5-inch naval artillery rounds, a 16-inch battleship round, and an airplane turbine. Access is by boat only, located 1609 metres from shore. Conditions include mild currents and visibility ranging from 10 to 30 metres. Hazards include sharp coral and surge. The site is suitable for beginners.

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.

Land's End is a reef and drift dive located off the western tip of Culebrita. The site features depths ranging from 5 to 12 metres, with an average depth of 8 metres. Visibility is typically high, spanning 18 to 30 metres. Water temperatures remain warm throughout the year, between 27 and 30 degrees Celsius. Access is by boat only, and the site is characterised by variable currents that can become strong. Due to these shifting conditions, Advanced certification is required to dive here safely. Divers should consult with their boat operator regarding current conditions and tidal stages before entering the water.

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.

Carlos Rosario Wall is a near-vertical wall formation located 400 metres from shore near Culebrita. The site features a reef and wall topography with depths ranging from 4 to 15 metres, averaging 10 metres. Conditions are generally mild, though divers should remain aware of boat traffic, sharp coral, and potential currents. As part of the protected Luis Pena Marine Reserve, all fishing and taking of marine life is strictly prohibited. This site is suitable for beginners and supports night diving. Access is by boat only, with visibility consistently recorded at 16 metres.

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.

Punta Tamarindo Grande, located off Culebrita, features a combination of reef and wall topography. The site is suitable for beginners, with average depths ranging from 9 to 12 metres. Divers can expect moderate currents and visibility between 5 and 10 metres. Marine life recorded at the site includes purple sea fans, wrasses, and sea bass. Other species observed include stoplight parrotfish, foureye butterflyfish, fairy basslet, redband parrotfish, groupers, Pacific trumpetfish, queen parrotfish, blue tang, Caribbean spiny lobster, sergeants, and soldierfish. Access is by boat only, located 2000 metres from shore. Divers should exercise caution regarding sharp rocks and coral while navigating the underwater terrain.

Chutes and Ladders is a drift reef dive located off Culebrita, Puerto Rico. The site features a reef structure with depths ranging from 12 to 24 metres, averaging 12 metres. Divers can expect moderate currents, which facilitate a drift dive experience. Visibility at the site typically spans 12 to 30 metres. Access is by boat only, and the site is suitable for beginners, though comfort in current is required. Guided tours and equipment rental are available for those visiting the area. The site is also open for night diving, with typical dive times around 50 minutes. Divers should remain close to their guide and descend promptly at the anchor line.