Haikou City lies at the northern end of Hainan Island and is separated from Leizhou Peninsula, Guangdong Province by Qiongzhou Strait.

Haikou, capital city of Hainan Province is so named because the Nandu River enters the sea here. As a tourist destination and a foreign trade port in China's southern border area, the city boasts high quality water, air and ecological environment that rank among the best both at home and abroad. It is one of the most famous tourist attractions, with the five elements, i.e., sunshine, beach, sea, greenness and air.