Yesterday I mentioned the sand bubblers, small blue crabs which create the aboriginal style patterns in the sand on tropical beaches. Today as the tide came in at Burrum Heads near Hervey Bay, I watched as millions of these crabs made their way across the beach in close rank, almost like columns of ants. A really incredible spectacle. The remarkable thing was, if I approached too close the crabs just disappeared! Inside a couple of seconds they just sank themselves into the sand and it was as if they had never been there, just a flat sandy beach remained! I don't know where these crabs were going or what they were doing, were they retreating from the tide or does this mass movement signify something else? I don't know, but great to be there and witness it.
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