Wrackcycling
Natural material that washes up on beaches, such as seaweed, can be used to support the development of man-made dunes. This natural material, known as wrack, is added incrementally to the dunes to mimic the natural growth of dunes. (U.S. Army Corps of Engineer photo by Khary Ratliff)

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Photo by: Khary Ratliff |  VIRIN: 230714-A-EN999-004.JPG