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 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.

Cenote Dos Pisos is a cave and cavern dive site in Tulum, Mexico, defined by two distinct depth levels. Divers navigate an overhead environment ranging from 6 to 24 metres, with an average depth of 20 metres. Visibility typically spans 15 to 30 metres, though ambient light diminishes quickly, necessitating the use of primary and backup torches. The site requires careful buoyancy control to avoid contact with sharp rock formations and to mitigate entanglement risks within the cave system. Entry is via the shore, located 300 metres from the parking area. Facilities include on-site parking and toilets. Typical dive times are approximately 60 minutes.

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.

Underworld Tulum offers access to flooded cave and cavern systems featuring layered limestone passages and halocline zones. Divers experience depths ranging from 5 to 40 metres with an average of 15 metres. The site is accessed from the shore and presents mild currents with visibility varying between 15 and 100 metres. Water temperatures remain stable between 27 and 29C throughout the year. Due to the overhead environment, divers must maintain strict buoyancy control to avoid contact with sharp rock formations and manage equipment to prevent entanglement. The site provides facilities including parking, showers, changing rooms, rinse stations, air fills, and equipment rental.

Tanka Tunum is a marine dive site located in Tulum, Mexico. This site is suitable for beginners, offering a consistent depth of approximately 6 metres. Divers access the site directly from the shore. Conditions are generally mild, with water temperatures ranging from 27C to 30C throughout the year. The site provides a straightforward environment for those looking to experience the coastal waters of the Yucatán Peninsula.

Yucatán Peninsula Reef in Tulum offers a accessible reef environment for beginner divers. Located 500 metres from shore, the site features depths ranging from 6 to 20 metres with an average of 12 metres. Visibility typically spans 15 to 30 metres, supported by mild currents and warm water temperatures between 27 and 30C. Divers can access the site via shore or boat, though caution is required at the entry point due to surf and shore break. Species recorded around this area include green sea turtles, French angelfish, great barracuda, and various stingrays. Facilities at the site include parking, toilets, showers, a cafe, and an on-site dive shop.