This unique book covers the author, Clay Blair Jr., and Robert Marx's diving adventures from the search for the Monitor off of Cape Hatteras, to the discovery of the Spanish treasure galleon "El Matanzero" off the coast of Yucatan. This book is also a practical guide for those skin divers who want to search for greater rewards: how to dig on a wreck and identify finds. The appendix includes extracts of 10 documents from the Archives of the Indies, in Seville, Spain, concerning the ship Nuestra Señora De Los Milagros, also known as El Matanzero.