![Walking-across-concrete-blocks-and-cubes-along-the-beach,-coastal-defense-structures-are-typically-used-to-protect-coastlines-from-erosion-and-wave-impact](https://videocdn.cdnpk.net/videos/03e44763-d9cc-4af6-b610-2775674c208e/horizontal/thumbnails/small.jpg)
Walking across concrete blocks and cubes along the beach, coastal defense structures are typically used to protect coastlines from erosion and wave impact
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