On September 4, 1622 the Tierra Firme flota of twenty-eight ships left Havana bound for Spain. With it was carried the wealth of an empire; Silver from Peru and Mexico, gold and emeralds from Colombia, pearls from Venezuela. Each ship carried its crew, soldiers, passengers, and all the necessary materials and provisions for a successful voyage. The following day, the fleet found itself being overtaken by a hurricane as it entered the Florida straits. By the morning of September 6th, eight of these vessels lay broken on the ocean floor, scattered from the Marquesas Keys to the Dry Tortugas. In them were the treasures of the Americas, and the untold stories of scores of Spanish sailors, soldiers, noblemen, and clergy. 
In 1969, Mel Fisher and his Treasure Salvors crew began a relentless, sixteen year quest for the treasure of the Atocha. Using sand-clearing propwash deflectors, or "mailboxes," that he invented, and specially-designed proton magnetometers, they spent long years following the wreck’s elusive trail--sometimes finding nothing for months, and then recovering bits of treasure and artifacts that teasingly indicated the proximity of the ship and its cargo.
Today artifacts and treasures from the Atocha and Margarita form the cornerstone of the Mel Fisher Maritime Heritage Society Museum’s collection. Among the items found on the wrecks are a fortune in gold, silver bars, and coins destined for the coffers of Spain; a solid gold belt and necklace set with gems; a gold chalice designed to prevent its user from being poisoned; an intricately-tooled gold plate; a gold chain that weighs more than seven pounds; a horde of contraband emeralds -- including an impessive 77.76 carat uncut hexagonal crystal experts have traced to the Muzo mine in Colombia; religious and secular jewelry; and silverware.