A recent expedition has used high - end submarines to research the Great Blue Hole , a vast and especially stunning marine sink discover in Belize . Among the many fascinating discoveries to come out of the dives , one was the discovery of “ racecourse ” found out at the bottom of the hollow .
Although we race to add this is not grounds of Godzilla on vacation or anything suspicious , the discovery is still an intriguing perceptivity into the story of the grand leatherneck sinkhole .
In December 2018 , a team of scientist and Explorer bring part in a mission to survey the Great Blue Hole . Among the crew members were a bunch of scientists and explorers , including the like of billionaire Richard Branson and Fabien Cousteau , the grandson of Gallic Internet Explorer Jacques Cousteau who first work notoriety to the Blue Hole in the other 1970s .

Erika Bergman , the chief submarine pilot on the project and oceanographer , toldCNN Travelthey had detect racecourse on the bottom of the sink that they were ineffective to identify and remain “ unfastened to interpreting " .
The Great Blue Hole is the secondly largest marine sinkhole in the world , followed by theDragon Holein the South China Sea , with a diameter of over 300 time ( 984 feet ) and a astuteness of 125 m ( 410 human foot ) . It can be found in the Lighthouse Reef , a small atoll over 70 kilometers ( 43 miles ) from the mainland of Belize . As part of this project , the team also mapped out the whole of the hole using high - solvent multibeam asdic and gathered environmental data about its water .
It ’s extremely improbable that the tracks were do by any living fauna in late times because the swallow hole ’s layer is destitute of oxygen . Dissolved atomic number 8 levels drop to zero below the layer of atomic number 1 sulfide that lie around 90 meter or so ( ~300 feet ) deep in the fix . It effectively creates a cloak in the hole , not allowing any circulation of water past . As a upshot of these uninhabitable experimental condition , the seafloor was also littered with dead ocean creatures that went too deep , only toasphyxiate andperish .
It ’s , therefore , a fair guess to say the course are the keepsake of a geological process . The Great Blue Hole actually start animation some as a cavern . Around 14,000 years ago , towards the end of the last Ice Age , the domain began to thaw and sea horizontal surface rose dramatically . The cave ’s ceiling eventually decrease in and flooded with water , just as we see it today .
The interior of the golf hole is still cake in stalagmite , stalactites , and other geologic features you ’d anticipate to see inside a cave . However , millennia of piss has allowed them to become incrust in marine growth .
" It ’s neat that there are outer space on our planet – and most of them in the sea – that are on the dot the manner they were thousands of years ago and will remain on the button the way they are thousands of years in the hereafter , " Bergman added , address to CNN .