Haijiao
Haijiao, also known as Tong Island, Taibujiao or Taijiao, is located at in the northeast corner of the Zhoushan Islands and belongs to Shengsi County of Zhoushan city. The name Haijiao literally means 'the ocean reef', and its generally accepted cartographic name of Taijiao literally means 'the extreme reef', a reference to its isolated position on the edge of China's maritime territory. It is a baseline point of China's territorial seas.