Poorly designed harbor
Appearance
As Lori Dengler pointed out, the Crescent City Harbor appears poorly designed. Note the approximately parabolic shape, and the breakwater oriented to capture and reflect rather than to deflect... There are multiple opportunities for constructive interference of traveling waves. On top of that, there were boats that were moored improperly (in one case it appears that a mooring line ran UNDER and across one boat, causing it to be flipped when the boat and dock began to rock out of phase).