|Districts||Tai Po District|
Port Island or Chek Chau (Chinese: 赤洲) is an island of Hong Kong, under the administration of Tai Po District. It is located in Tolo Channel, in the northeastern New Territories. Its name literally means red island; after the sedimentary rocks rich in iron that form this island. and volcanoes
Port Island has been designated as a Site of Special Scientific Interest since 1979.