Special Chengdao is a small island in the middle of Zhanjiang Bay Waterway in Zhanjiang City, Guangdong Province. "Special Cheng" is the ancient Yue language. "Special" is the place. "Cheng" means harmonious and auspicious. Special Chengdao is only 3 nautical miles away from Xiashan District, Zhanjiang City, with an area of 3.6 square kilometers, which is a natural good port to protect the safety of the wind and waves.