InPics | A glimpse of rare blue hole in China's Huangyan Dao
SOUTH CHINA SEA, July 13 (Xinhua) -- China's Ministry of Ecology and Environment released a report on a blue hole in Huangyan Dao in the South China Sea on June 25, which said the rare coral reef-formed feature is the first of its kind identified in China.The opening of the blue hole covers an area of about 1,491.7 square meters and has a maximum diameter of 56.3 meters. It is 16.6 meters deep, with a funnel-sha
7/13/2026 7:15:46 AM