Chun Chacaaab Reef is a boat-access-only site located off Puerto Aventuras, Mexico. This reef is suited for advanced divers due to its strong currents and depths ranging from 15 to 24 metres, with an average depth of 21 metres. Typical dives last approximately 40 minutes. Because conditions can change significantly, divers should confirm current strength and direction with their operator before entering the water. Hazards include strong currents and the presence of lionfish; maintain a safe distance from these fish to avoid their venomous spines. Remain close to the boat throughout the dive and maintain precise buoyancy control to manage the drift effectively.

Maracaibo Reef is a complex site off Puerto Aventuras featuring a wall, drop-off, and various overhead environments including caves and caverns. This site is suited for advanced divers, with depths ranging from 18 to 45 metres. Divers must be prepared for strong currents that can shift direction unexpectedly. Visibility reaches up to 30 metres but remains variable. Due to the significant depth and technical nature of the overhead structures, advanced and deep diving certifications are mandatory. Access is exclusively by boat to avoid the surf and shore break conditions present at the coastline. Divers should maintain constant vigilance regarding boat traffic during ascent.

Punta Sur is a demanding drift dive located at the southern tip of Cozumel. The site features a deep wall that drops beyond 40 metres, with an average depth of 30 metres. Divers encounter strong currents along the reef, which includes cave structures and overhead environments. Visibility typically ranges from 20 to 40 metres, and water temperatures remain between 27 and 29C. Due to the depth and current, this site is strictly for advanced divers. Boat access is required, and divers must manage decompression and nitrogen narcosis risks. Briefings with divemasters are essential before entry to coordinate drift pick-up procedures.

Maracaibo is a deep wall dive located off the southern coast of Cozumel. The wall begins at approximately 29 metres and extends to depths exceeding 43 metres. A signature feature of the site is a large, well-defined arch that divers can navigate from the bottom upwards. Due to the location, this site requires boat access and is suited for advanced divers only. Conditions are characterised by strong currents and potential ocean swells at the surface. Visibility typically ranges between 25 and 30 metres, with water temperatures remaining between 27 and 29 degrees Celsius throughout the year.

Punta Sur Reef in Puerto Aventuras is a demanding site featuring a reef and wall system with depths ranging from 25 to 40 metres. This location is defined by strong currents, making drift diving the primary method of exploration. The topography includes complex caves and caverns, which present overhead environments. Due to the significant depth, strong currents, and technical nature of the cavern systems, this site is suitable only for advanced divers with appropriate deep and overhead environment training. Visibility typically ranges between 20 and 40 metres. Boat access is required, and divers should be prepared for potential surf and shore break conditions during entry and exit.

Palancar Reef is a drift diving site situated 2000 metres offshore, characterised by a combination of shallow reef structures and a deep wall. Depths range from 7 to 36 metres, with an average of 25 metres. Divers encounter moderate currents and visibility spanning 20 to 100 metres. Access is strictly by boat, and the site requires an Advanced Open Water certification due to the depth and current conditions. Water temperatures remain stable between 27 and 29 degrees Celsius. Divers must remain vigilant regarding boat traffic, surge, and the risk of nitrogen narcosis at deeper sections. Always deploy an SMB before surfacing to ensure safety from vessel traffic.

Colombia Reef in Puerto Aventuras is a drift dive featuring a wall that descends from a 5-metre shallow top to a maximum depth of 27 metres. The site offers visibility ranging from 12 to 60 metres. Divers experience moderate currents, making this a suitable location for beginners, though caution regarding boat traffic and buoyancy control near sharp coral is necessary. Night diving is available at this location. Species recorded around this area include French angelfish, Queen angelfish, Great barracuda, Nurse sharks, and various moray eels. Divers should monitor their depth closely to manage risks associated with nitrogen narcosis and decompression.

Punta Sur is located at the southernmost tip of Cozumel Island, offering a complex topography of reefs, walls, and cave systems. Divers can explore depths ranging from 10 to 50 metres. Access to this site requires a boat, as the area is subject to moderate currents. Visibility typically ranges between 22 and 37 metres, with water temperatures remaining between 27 and 29C throughout the year. Due to the deep water, overhead environments, and sharp coral, this site is suited for advanced divers. Facilities available at the location include parking, toilets, showers, changing rooms, and a dive shop.