Diver has extreme encounter with massive hammerhead

Kristy and Dave had hoped to see a hammerhead shark some day but didn't expect a curious 15 foot shark like this to come up and check them out. It quickly decides that they aren't food as it passes by closely. But it isn't close enough for Kristy. She's in hot pursuit to get her video, but when the shark turns back around towards her she has second thoughts about getting too close...