Documentary filmmaker Pat Clyne has hidden a $2,400 silver coin from the 17th-century Spanish galleon Atocha on the 523-foot Hoyt S. Vandenberg, and the rule is finders keepers.
Clyne has done his share of treasure hunting: For more than 30 years, he worked for Mel Fisher, whose crews have salvaged more than $500 million in treasure from the Atocha and her sister ship the Margarita.
The coin is in a black tin box with magnets on the back; whoever finds it can e-mail Clyne, who will send the diver the coin's certificate of authenticity, signed by Fisher.
Why would Clyne give up a historically significant $2,400 silver coin ?
"Because I can ?" he asked rhetorically. "I have a couple left over, and I thought it would be exciting for divers.
Besides the aesthetics of the dive itself, this gives them a little something to keep their eyes peeled for."