Cobble bars and shores, and cliff fishing, are much more predicatable -semi permanent structure. Block Island has a lot of different structure within a small area, that's why really knowing the island takes such a long time. I don't know much about fishing the open beach east and north sides.
The article says that understanding the movement of sand along the beach to be much more complicated than thought. I don't dispute that - but you have to consider that they are talking about a twelve-month cycle, prevailing winds change depending on the season. Things are less complicated for seasonal anglers during fair weather months with prevailing winds from mostly one direction. Still though, I always found reading the water along open beaches more difficult.
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