@Lali3d made a wonderful scale miniature tetrapod using a documented set of real-world measurements. I wanted to edit the model in Fusion 360, so I rebuilt it from scratch using those same measurements found by @Lali3d.

(Documentation Source)

To access the parametric properties in this file, open the included .F3D file using Fusion 360. This tetrapod model is driven by a single sketch called “Driving Profile." You can change the parameters here to alter the tetrapod. I have also included the .STEP file for printing and modifications in other applications.

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Lali3d has made a myriad of other interesting tetrapods and wave-breaks that are worth checking out!