It was recently discovered that the Taam Ja’ blue hole (deep water in Mayan), located in Chetumal Bay, in Mexico, is at least 420 meters deep, although its bottom has not been reached, so it is It ranks as the deepest in the world, surpassing the depth of the previously known as the deepest: the Dragon Hole in the South China Sea, which reaches 301 meters.
A blue hole is a large sea cavern or sinkhole that is open to the surface below sea level. Blue holes are distinguished from cenotes in that the latter are interior spaces that generally contain fresh groundwater rather than seawater.
