Stock Photo - Tetrapods are concrete blocks used in coastal protection structures. Tetrapods are strung together along the coastline, at docks or jetties or stacked in several rows. They serve as breakwaters and are designed to reduce the force of water waves.

Stock Photo: Tetrapods are concrete blocks used in coastal protection structures. Tetrapods are strung together along the coastline, at docks or jetties or stacked in.

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