spinner sharks

As we cruise along about 100 yards off the beach, I turn to guide Scott Hamilton and ask, "How will we know when we've found them?"

"Oh, you'll know," he says assuredly. "When they're around, they show themselves." A little while later, we see several mean-looking creatures leap out of the water, conduct some spectacular aerial maneuvers, then crash back down. We'd found them, all right-spinner sharks.