south of Changjiang or Yangtze river; south of the lower reaches of Changjiang; often refers to south Jiangsu, south Anhui and north Zhejiang provinces; a province during Qing times; in literature, refers to the sunny south; Gangnam (district in Seoul, South Korea)
"But when our guide beckoned for us to follow him beyond the middle of the river, we did, eventually arriving at the riverbank on the North Korean side," they said.