Watson will be swimming behind the cage. The present underwater record, he says, is 48 miles, set in the English Channel in 1962. "Two years ago a guy tried to swim the Gulf on the surface in a cage," says Watson. "He aborted when the sharks began nibbling his cage."
Watson will be swimming about 40 to 50 hours and expects "my skin will begin to deteriorate." He will eat a liquid high-protein nutriment but has been practicing with candy bars underwater—"Not very appetizing"—and will be watched by an underwater closed-circuit television system. "If the sharks get too bad," he says, "I'll swim into the cage and proceed in it, if I can make the cage in time."
Better that than nutriment for the sharks.