Constructive Criticism

There's a phenomenon described in the science of waves that illustrates what happens when two different waves cross paths and interact. If the troughs of the two waves happen to intersect, the waves will subtract from each other and you'll get a trough twice as deep. If the trough of one wave intersects the crest of the other, the waves will cancel out and you'll get flat water. But if the crests of the two waves intersect, they'll add onto each other, and you'll get a wave that for a moment has a crest twice as high.

 

Here, the waves are coming in from the northeast and hitting the sea wall at something a little less than a 30° angle, then bouncing back out toward the southeast at the same angle. (Angle of incidence equals angle of reflection.) This means the outgoing reflected wave is meeting the incoming incidental wave, and the crests are stacking onto each other at this point. The arrangement of the various walls directed the incoming waves in such a way that this super crest kept appearing at roughly the same spot. It would have made that a fun place to put a surfboard, though it's likely you'd get tossed into the wall.

Done