Guchang Huacheng is a county town near the west coast of Changjiang County, Hainan Province. It is a famous tourist attraction. Guchang Huacheng was built in the Hongwu period of the Ming Dynasty. It has a history of several thousand years. The walls of Changhua City still have a very strong defense system. The scars and marks on the stone walls serve as historical evidence of their resistance to wars and attacks by the Wokou.