Well not to hijack the thread! Very low tide this AM, the outer reefs were exposed. The little sand floaties were still prevelant but not as many. They are of different levels of density as some created shadows on the sea floor as the tide came in, others did not create shadows. The shodows showed the flow of the incoming tide through the stones.
Surprised someone has not offered some more information about this phenomenon. What creates the conditions whereby the particles, which are heavier than water, gather together and float? Hard to imagine they are formed on the sea floor and rise up to the surface, but ?? Most likely they go out from the beach on the outgoing tide when there is no surf to break them up. Not much interest I guess. Next I'll post about the activities of the eagles.