安达曼海，珊瑚礁退化，珊瑚残骸覆盖沙质海床

ubble and reef degradation cover the sandy ocean floor in this wide shot, the fragmented coral skeletons likely the result of coral bleaching or sustained wave action breaking down weakened reef structure. Rubble fields such as this often form after coral colonies die and lose structural integrity, leaving fragments that shift with currents and struggle to support new growth. The scene reflects environmental stress on Indo-Pacific reef systems. 4K, wide angle, vertical wide shot, scuba diver POV. Andaman Sea, Krabi Province, Thailand.