Beneath the turquoise waters of Sanya, Hainan, lies an aquatic wonderland captivating divers worldwide. New surveys reveal expanding coral reef systems this year, with 38% growth observed since 2020, creating vibrant habitats for over 500 marine species. From curious clownfish to majestic manta rays, the biodiversity here offers what marine biologists call 'a living textbook of South China Sea ecology.'
Local operators now offer night dives using eco-friendly LED systems, allowing visitors to observe bioluminescent plankton without disturbing marine ecosystems. 'This isn't just tourism – it's underwater conservation education,' explains dive instructor Li Wei, who has trained 1,200 visitors in reef protection techniques since January.
