Longdong in South China Sea Is World's Deepest Blue Hole
2016-07-30 09:06:35 source：United Press International
July 29, 2016
"A diving expedition has revealed the South China Sea's Dragon Hole, or Longdong, to be the deepest blue hole in the world.
According to state news service Xinhua, Chinese researchers measured the depth of Longdong at 987 feet, besting the previous record held by Dean's Hole in the Bahamas by 324 feet. The entrance to the Dragon Hole measures 426 feet wide."
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