Aerial view of S China's Haikou (8)

Aerial photo taken on May 2, 2021 shows the Wuyuan river national wetland park in Haikou, capital of south China's Hainan Province. Haikou, an important city of China's "Belt and Road" initiative and also a core city for the construction of free trade port in Hainan Province, will greet the first China International Consumer Products Expo. (Xinhua/Yang Guanyu)