The middle foot of Nanyuntai Mountain in Lianyungang City.

According to Baidu Encyclopedia query, Huaguoshan Water Curtain Cave is located at the middle foot of Nanyuntai Mountain in Lianyungang City. Water Curtain Cave is located halfway up the Huaguo Mountain in Lianyungang City, Jiangsu Province. It was once a vast ocean in ancient times. It reached its current scale in the Ming Dynasty and became famous overseas due to "Journey to the West". Wu Cheng'en was inspired by the Water Curtain Cave and provided the early Sun Wukong with a very mythological activity place in "Journey to the West". Zhang Chaorui, a native of Haizhou in the Ming Dynasty, recorded in an inscription for Sanyuan Palace that Shuilian Cave was a must-visit place for pilgrims. The four characters "High Mountains and Flowing Waters" on the stone wall were inscribed by Wang Tong, the prefect of Haizhou, in the 23rd year of Jiajing in the Ming Dynasty (1544). At that time, "Journey to the West" had not yet been published.