<p>Fig. 5. After wave-force action on sand with balancing force of rock wall, the sandy beach slope is marked in purple marker. Notice the comparison to the original, black line slope, and the after slope, in red, of the plain beach trial.</p>

Fig. 5. After wave-force action on sand with balancing force of rock wall, the sandy beach slope is marked in purple marker. Notice the comparison to the original, black line slope, and the after slope, in red, of the plain beach trial.

Image by Kanesa Duncan Seraphin.