Shiziyang () or Shizi Channel is the upper
channel of the
Pearl River
The Pearl River, also known by its Chinese name Zhujiang or Zhu Jiang in Mandarin pinyin or Chu Kiang and formerly often known as the , is an extensive river system in southern China. The name "Pearl River" is also often used as a catch-all ...
estuary. It runs from the confluence of the
Dong River and the
Pearl River
The Pearl River, also known by its Chinese name Zhujiang or Zhu Jiang in Mandarin pinyin or Chu Kiang and formerly often known as the , is an extensive river system in southern China. The name "Pearl River" is also often used as a catch-all ...
with parts of the
Bei River
Bei River (北江; literally "The North River"; pinyin: ''Běi Jiāng''; wade-giles: ''Pei3 Chiang1''; jyutping: ''Bak1 Gong1'', literally "North River") is the northern tributary of the Pearl River in southern China. The other two main tri ...
to the
Bocca Tigris
The Humen, also Bocca Tigris or Bogue, is a narrow strait in the Pearl River Delta that separates Shiziyang in the north and Lingdingyang in the south near Humen Town in China's Guangdong Province. It is the site of the Pearl River's discha ...
which separate
Lingdingyang the mid channel of the Pearl River Estuary in the south.
It is a wide
tidal strait
A tidal strait is technically not a river but a strait connecting two oceans or seas. Tidal straits are narrow seaways through which tidal currents flow. Tidal currents are usually unidirectional but sometimes are bidirectional. They are freq ...
connecting the Huangpu New Port of
Guangzhou
Guangzhou (, ; ; or ; ), also known as Canton () and alternatively romanized as Kwongchow or Kwangchow, is the capital and largest city of Guangdong province in southern China. Located on the Pearl River about north-northwest of Hong ...
to the
South China Sea
The South China Sea is a marginal sea of the Western Pacific Ocean. It is bounded in the north by the shores of South China (hence the name), in the west by the Indochinese Peninsula, in the east by the islands of Taiwan and northwestern Phil ...
.The Huangpu New Port is located at the confluence of the Dong River and the Pearl River. The Huangpu New Port is only part of the larger