Where is the world’s deepest underwater sinkhole?

Here is the question :


Here is the option for the question :

  • Mediterranean Sea
  • South China Sea
  • Caribbean Sea
  • Adriatic Sea

The Answer:

And, the answer for the the question is :

South China Sea


[STC00758] The characteristic blue circle that is formed on the water’s surface by blue holes is the result of deep underwater caves or sinkholes that are located in the midst of the ocean. In 2016, researchers found one of these sinkholes in the South China Sea that was the deepest ever discovered. Using an underwater robot equipped with a depth sensor, the researchers were able to determine that the Dragon Hole, which is also referred to as the Yongle Blue Hole, extends 987 feet below the ocean’s surface. Located in a coral reef off the Paracel Islands, the Dragon Hole took over the title from Dean’s Blue Hole in the Bahamas, which was previously the world’s deepest underwater sinkhole with a depth of more than 660 feet.