The diver swims around the spectacular sinkhole, which is believed to be the site of an ancient Mayan burial ground.
The cenote sinkhole in Chetumal is located in the heart of the Mayan forest in the Yucatan Peninsula, Mexico.
The eerie cavern is filled with bones and fossils. The spectacular pictures were taken by French wildlife and underwater photographer Fabrice Guerin.
Guerin said that the beauty and exuberance of these underwater landscapes made him feel like he had discovered another world.
The talented photographer had undertaken the exploration to discover more about the fascinating sinkhole and what lay inside it
The sinkhole is illuminated by the natural light that streams in through its opening, which makes for some breath-taking photographs
Cenotes are naturally formed pits or sinkholes made of limestone and some were used as a source of fresh water for Mayans with their entire towns built around them