Abstract: A structure that prevents beach erosion and that builds-up the existing beach and shoreline is disclosed. The structure has a plurality of blocks that are configured into a matrix configuration. Each block has a pair of longitudinal rods extending from the block sides. The longitudinal rods have a hook at a first end and a loop at a second end. The blocks cooperate with each other so that the blocks become flexibly connected by placing the rod hook from a first block into the rod loop of a second and adjacent block. The process is repeated until a matrix is in place covering the area desired. Anchors are attached to the matrix assembly and buried in the sand to keep the matrix configuration in place at the assembly site.