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Beware the poison ivy!!!!!!! It grows like grass here, the dunes are completely covered in it (see picture).
Otherwise it's a beautiful and isolated place. I walked all along the beach toward the end of the day and didn't encounter a single person.
I walked all the way to the very tip of Long Point and was greeted by a bunch of curious seals in the water.
I was able to make the full loop around the point, walking along both the north and south beaches. Some days, it seems, the north beach gets flooded inland and you can't walk that way, though. Check the tides maybe, or try your luck.