Zhoushan or Zhoushan Archipelago New Area; formerly transliterated as Chusan, is a prefecture-level city in northeastern Zhejiang province of Eastern China. The only prefecture-level city of the People's Republic of China consisting solely of islands, it lies across the mouth of the Hangzhou Bay, and is separated from the mainland by a narrow body of water. On 8 July 2011 the central government approved Zhoushan's status as a state-level new area.