As a scuba enthusiast, American vlogger Matt Galat has gone scuba diving in many parts of the world. However, this time, he dived not for fun, but for corals off the coast of Sanya City, south China's Hainan Province. He took the deep plunge alongside a team of marine biologists to witness their fascinating work under the sea.
How are corals grown in the ocean? Join Matt and find out!
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