Jiangsu borders the Yellow Sea to the east, the Huaihe River to the north, the Yangtze River to the south, and the Beijing-Hangzhou Grand Canal in the middle. There are many rivers and lakes in the territory, and it is the province with the lowest average altitude in China. The proportion of plains and water surfaces ranks first in the country. The journey into Jiangsu begins from an island in the Yellow Sea. You will encounter the beautiful red-crowned crane in the largest wetland on the Yellow Sea. Then you will fly south along the coastline and arrive at the estuary of the Yangtze River, recalling the past and present life of a port.