The Atlantic Ghost Crab (Ocypode quadrata) or Ghost Fiddler can be spotted at the edges of dunes and vegetation all over the Georgia coast, though they can be a bit elusive, quickly disappearing into the sand [below].
Ghost Crab, Jekyll Island
Vanishing Georgia: Photographs by Brian Brown
Since 2008. A visual survey of Georgia's historic architecture and culture. 9,000 locations. 30,000 images.
They are actually seen very frequently …. Maybe not quite as much on crowded beaches.