Ship passengers interact with black-tailed gulls off Hailyu Island in Rongcheng, Shandong province, on Tuesday. [Photo by Li Xinjun/For China Daily]

Ship passengers interact with black-tailed gulls off Hailyu Island in Rongcheng, Shandong province, on Tuesday. More than 10,000 gulls and Chinese egrets migrate to the island every spring and summer, drawing tourists from near and far.