Cenote Yax-Chen is a freshwater cavern and cave system near Tulum, Mexico, offering a shallow dive experience between 5 and 8 metres. The site is accessible to beginners, as the overhead environment remains within natural light reach of the cavern entrance. Divers should manage buoyancy to account for thermoclines, which can create layered hazing effects, particularly after rain when tannic acid influences the surface water. Visibility typically ranges from 5 to 20 metres. Facilities on-site include parking, toilets, showers, and equipment rental. Species recorded around this area include various reef fish, invertebrates, and occasionally crocodiles, which require a respectful distance.

Chak Mool is a cavern dive site near Tulum, Mexico, offering an overhead environment with depths ranging from 8 to 12 metres. Divers access the site from the shore, encountering mild currents and visibility that varies between 5 and 25 metres. The site features a distinct halocline, which is a key characteristic of this cavern system. Facilities available at the location include parking, toilets, showers, changing rooms, and a cafe. While specific marine life sightings are not confirmed at this exact site, species recorded around this area include green sea turtles, French angelfish, wrasses, and various stingray species.

Escuela Puerto Aventuras is a shallow reef site located in Tulum, Mexico, suitable for beginner divers. The site features an average depth of 7 metres and is accessed directly from the shore. Divers can expect mild currents and visibility ranging between 20 and 30 metres. Typical dive times are approximately 40 minutes. Hazards at this location include boat traffic, jellyfish, and sharp coral. Species recorded around this area include green sea turtles, French angelfish, great barracuda, Indian lionfish, Brazilian reef octopus, chain moray, Chupare stingray, whiptail stingray, wrasses, purple sea fans, Atlantic tarpon, Caribbean ocean surgeonfish, foureye butterfly fish, and various drum and croaker species.

Angelita Cenote is a vertical karst sinkhole near Tulum, offering a unique freshwater diving experience. The site features a distinct hydrogen sulphide halocline layer at approximately 30 metres, which creates an opaque cloud separating the upper freshwater from the deeper, saltier water. Divers can reach depths of 60 metres, requiring advanced skills and careful management of decompression and nitrogen narcosis. Visibility varies significantly, ranging from 30 metres in the upper section to near zero within the halocline. Shore entry is straightforward, and the site includes parking and toilet facilities. Due to the depth and potential for low visibility, carrying two dive lights is recommended.

Cenote Angelita is a deep cavern dive located 150 metres from the shore near Tulum. This site features a vertical drop reaching depths of 56 metres, with an average dive depth of 30 metres. A distinctive hydrogen sulfide cloud is encountered at approximately 27 metres, which can reduce visibility significantly. The dive is suited for advanced divers due to the overhead environment, potential for nitrogen narcosis, and decompression requirements. Water temperatures typically range from 24 to 26 degrees Celsius, dropping to 22 degrees Celsius below the cloud layer. Facilities at the site include parking, toilets, showers, changing rooms, a rinse station, and gear storage.

Cenote Chan Hol is a freshwater cave system near Tulum, Mexico, offering a technical diving experience for intermediate divers. The site features depths ranging from 5 to 11 metres with a mild current. Visibility is highly variable, shifting from 5 to 100 metres depending on diver movement and sediment disturbance. Proper buoyancy control and frog kick technique are essential to maintain water clarity and avoid contact with delicate cave structures. A halocline may be present, which can cause a noticeable temperature drop. The site is accessible from the shore and includes facilities such as parking, toilets, and air fills. Guided tours are available for those navigating the overhead environment.

Kaan Luum Lagoon in Tulum offers a unique environment with shallow areas averaging 1 metre that drop to depths of 80 metres. Divers and snorkellers enter from the shore to explore a site featuring aquatic plants, crustaceans, and small freshwater fish. Visibility ranges from 5 to 15 metres, with water temperatures between 26 and 28 degrees Celsius. While currents are generally mild, strong currents and significant depth changes require intermediate skill levels. The site includes an overhead environment, making it essential for divers to maintain buoyancy control and possess appropriate cave certification for deeper sections. On-site facilities include parking, toilets, showers, changing rooms, and guided tours.

Ballena is a reef site located 1500 metres offshore from Tulum, Mexico. This drift dive features natural channels and sandy bottom topography, making it suitable for beginners. Divers typically reach depths between 5 and 12 metres, with an average of 9 metres. The site experiences mild currents and visibility ranging from 15 to 30 metres. Access is by boat only, and the site is available for night diving. Species recorded around this area include Green Sea Turtles, French Angelfish, Great Barracuda, and various stingrays. Divers should be aware of boat traffic and sharp coral formations when navigating the reef.