A submarine sinkhole.

 

Name: Great Blue Hole

Lat, Long: 17.31553,-87.53525

Location: Lighthouse Reef, Belize

 

Great Blue Hole, Lighthouse Reef, Belize

 

Edit: Stumbled upon this video about the blue hole. Amazing stuff!

https://i2.wp.com/www.weirdgoogleearth.com/wp-content/uploads/2013/11/great-blue-hole.jpg?fit=1000%2C675&ssl=1https://i2.wp.com/www.weirdgoogleearth.com/wp-content/uploads/2013/11/great-blue-hole.jpg?resize=150%2C150&ssl=1WeirdCool StuffNatureSinkhole  A submarine sinkhole.   Name: Great Blue Hole Lat, Long: 17.31553,-87.53525 Location: Lighthouse Reef, Belize     Edit: Stumbled upon this video about the blue hole. Amazing stuff!Peculiar places from around Google Earth