The world's deepest underwater sinkhole has been discovered in the South
China Sea. The discovery was announced on Friday by researchers from
China. Labelled as the 'Dragon Hole' by the Chinese, the limestone cave
is 300.89 metres (987 feet) deep, which is nearly the height of the
1,003-foot-tall skyscraper, The Shard.
The world's deepest underwater sinkhole was thought to be the Dean's
Blue Hole in Bahamas, which measures 202 metres (663 feet) deep, before
Chinese researchers made the announcement on July 22. Underwater
sinkholes are also known as blue holes.
Chinese experts measured the dimensions of the blue hole during field
research between August, 2015, and June, 2016, according to state-run
Huanqiu.com.
With the help of equipment including sonar scanners, deep-sea current
metres, underwater robots and underwater cameras, they found out the
sinkhole is 300.89 metres (987 feet) in depth.
Experts said they had also discovered about 20 marine species in the cave.
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