Gran Cenote in Tulum is a freshwater cavern and cave system set within a jungle environment. Divers and snorkellers access the water from the shore to explore geological formations featuring moss and aquatic plants. The site offers depths ranging from 9 to 14 metres with visibility between 10 and 50 metres. Conditions are generally mild, though the environment includes overhead structures. Water temperatures typically range from 27 to 30 degrees Celsius, though some areas may feel cooler. Facilities available on-site include parking, toilets, showers, changing rooms, and a cafe. The site is suitable for beginners and provides a distinct freshwater experience compared to regional ocean diving.

Cenote Calavera is a freshwater cavern site in Tulum featuring three distinct rock openings that allow shafts of light to illuminate the main chamber. Divers enter via a shore jump through one of the circular openings. The site reaches depths between 5 and 19 metres, with visibility ranging from 30 to 52 metres. The water is still with temperatures between 27 and 30 degrees Celsius. Divers should maintain awareness of the overhead environment and be prepared for visual distortion caused by the halocline where fresh and salt water layers mix. Facilities include parking, toilets, showers, and changing rooms.

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.

Nohoch Nah Chich is a shallow cave system in Tulum, Mexico, featuring depths between 1 and 7 metres. This freshwater environment offers visibility ranging from 15 to 100 metres. The site is accessed from the shore, with parking and a cafe available on-site. Divers must possess cave diving certification to navigate the overhead environment, as no natural light penetrates the deeper passages. Divers should carry at least one primary torch and a backup. The cave supports a low-light ecosystem containing algae, cave shrimp, and small freshwater fish. Maintain precise buoyancy control to avoid contact with the cave structure, as there is no direct ascent to the surface.

Tulum Reef is a section of the Mesoamerican Barrier Reef situated 300 metres offshore, directly in front of the Tulum Archaeological Site. The reef offers views of the ancient Mayan ruins from the water. Depths range from 2 to 30 metres, with an average of 15 metres. Access is by boat, and the site is suitable for intermediate divers. Conditions include moderate currents and visibility between 10 and 30 metres. Hazards include boat traffic, surf, sharp coral, and deep sections. Species recorded around this area include green sea turtles, French angelfish, great barracuda, Indian lionfish, various stingrays, wrasses, blue tang, and Atlantic tarpon.

Cenote Pet Cemetery is a cavern and cave system located near Tulum, Mexico, forming part of the second longest underground river system in the world. The site is characterised by shallow depths averaging 3 metres, with a maximum depth of 7 metres. Divers and snorkellers can explore rock formations including columns, stalagmites, and stalactites. The site is accessed via a shore entry and offers visibility ranging from 10 to 30 metres. Due to the overhead environment, divers should be aware of entanglement hazards. Facilities available at the site include parking, toilets, showers, and changing rooms.