高清一级淫片a级中文字幕,亚洲无码免费在线小视频,精品国产群3p交换,国产初次视频观看

To strengthen its ecological protection work, Sansha, China's southernmost prefecture-level city, has banned activities near the world's deepest blue hole.

A notice issued on Oct. 8 forbid any institution or individual from conducting fishing or sightseeing activities in the area within 1 nautical mile of the Sansha Yongle Blue Hole, the world's deepest underwater sinkhole, which is located near the Xisha Islands in the South China Sea.

The notice requires relevant departments to enhance education about maritime environment protection. It also stipulates that scientific studies in the area must get approval from the Sansha municipal government.