Abstract: This invention relates to means to produce an artificial reef or floating breakwater wherein a series of buoyant disks are strung on a buoyant flexible line in spaced relation to each other with the lower end of the line being tethered to its own anchor. These tethered disks are placed preferably in about 6 to 18 feet water depth from the shoreline. A series of these disk-anchors are strung along in or out of lines paralleling the shoreline and in various depths of water to provide effective grid means for eliminating or at least substantially reducing the erosion effect along shorelines resulting from wave action.The placement of the disk-rope anchor units is preferably in the water paralleling the shoreline and each unit is spaced apart from the other. However, the spacing is not critical but to accomplish the results sought to be achieved, the spacing ought to be close enough to be effective and yet not tangle with each other.