Logic makes sense to me, have been thinking this too. Of course I really have no idea. Would be great to hear from someone who has some specialized knowledge of this.
Originally Posted by forman
Since the longshore current is almost exclusively from east to west in these areas, one would assume that the untreated water would never flow "backwards", keeping the portion of beach where we surf relatively safe. Of course I'm no scientist and could be completely wrong, but this would be my best guess.