how deep is the world's deepest hole
Deepest Hole In The World. The deepest hole in the world is on the Kola peninsula of Russia near the Norwegian border. This hole is being drilled for scientific study purposes and is currently over 12,200 meters deep.
The deepest blue hole in the world at 987 feet (300.89 meters) deep is in the South China Sea and is named the Dragon Hole, or Longdong. The 2nd deepest blue hole in the world with underwater entrance at 202 metres (663 ft) is Dean's Blue Hole, located in a bay west of Clarence Town on Long Island, Bahamas.