Yancheng was exploited as early as over 2,100 years ago. The Huaihe River empties into the Yellow Sea in northern part of the city. In Western Han Dynasty (206BC-24AD), a county named with salt was established here for its salt production, and get its name, Yancheng, in 411 BC. The general terrain of Yancheng is flat, and its domain can be divided into three plain areas. Within the city, there are many rivers crisscross forming an intense water network. Climatic Features: In the transition area between the south warm temperate zone to the subtropical, the weather has strong features of oceanic warm and humid monsoon climate. It is characterized by distinctive four seasons, abundant rainfall and sunshine. The weather is relatively moderate, but temperature in winter and summer may vary greatly in a year. Actually, Yancheng's spring, summer and autumn are all favorable for visiting.