Wild geese soar effortlessly in the sky above the Yellow River Estuary Ecotourism Area in Dongying, Shandong province. [Photo by Wang Liming/Dongying Weekly] 

The Yellow River Estuary Ecotourism Area does not only serve as an important scientific and research base for ecologists, biologists, ornithologists and hydraulic engineers, but is also a popular destination for tourists. [Photo by Han Chao/Dongying Weekly]

Home to 368 kinds of birds, the Yellow River Estuary Ecotourism Area is a popular destination for bird watching. [Photo/Dongying Weekly]