7Cenote Esqueleto, The Temple of Doom, Tulum, Mexico

Aptly known by its nickname, ‘The Temple of Doom,’ the Cenote Esqueleto located in Mexico can be dangerous from the very onset. Once the divers have jumped in, they are advised to stay within the sunlit areas as it can get extremely dark in places.

The combination of dark passageways and intricate tunnels can cause divers to become disorientated and lost. Getting lost is the main reason for many of the deaths at this dive site. Divers lose their way and run out of air, rendering them helpless.