The treasure diver's guide.

The Treasure Diver's Guide was written in the early years of scuba-diving, before the scientific methods of modern marine archaeologists had emerged. It was, however, and still is, a popular book in the Florida Keys with its many accounts of sunken Spanish treasure fleets, Spanish galleons, and shipwreck exploration, research, and identification. Its twenty-nine chapters constitute a treasure of information themselves on topics as diverse as Manila galleons, ballast mounds, and shipwrecks like that of La Nuestra Senora de la Concepcion, a 600 ton galleon of the 1586 Armada of the Indies.