香港方面在外伶仃岛正北约4.5公里处设立垃圾区，长期倾倒淤泥、垃圾。
A waste dumping area was set at the waters 4 . 5 km morth to Wai Lingding Island by the Hong Kong side and has been being used for dumping rubbish and silt for a long time .
外伶仃岛