What is the name of the estuary surrounded by the delta containing Changzhou Island?
Changzhou Island Changzhou Island, formerly known in English as Dane or Dane's Island , is an island in the Pearl River Delta of China's Guangdong Province. It is now administered as part of Guangzhou's Huangpu District, although the historic Huangpu Island was nearby Pazhou, which forms part of Haizhu District.
Ganghwa Island Ganghwa Island, also known by its native name Ganghwado, is a South Korean island in the estuary of the Han River. It lies in the Yellow Sea off Korea's west coast, separated from Gimpo on the South Korean mainland by a narrow channel spanned by two bridges and from Kaesong (Gaeseong) in North Korea by the main channel of the Han River.