If you take an aerial view of mudflats in the east of Ningde City, southeast China's Fujian Province, you would be amazed by sand ridges resembling ancient oracle bone scripts. They are not drawn by some supernatural powers, but by humans. 

Fishermen of Xiapu County have inherited the tradition of cultivating the sea. They set up circular net cages and make uneven seawalls extending in different directions on the seashore to gather seafood. The nutrient-rich muddy coasts where fish, shrimps, crabs and other marine species thrive bring great fortune to people living here for generations.

(Video filmed by CGTN Nature film crew, edited by CGTN's Zhao Ying)

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