"A very short clip of some of the Hammerhead shark action we had at Cocos Island (Costa Rica) on my recent trip there from September 8-18, 2014 aboard the Undersea Hunter Group's boat 'Argo'. We had some excellent diving, with hundreds of Hammerheads, plus Galapagos, Tiger, and the ever-present white-tip sharks. Shot with my GoPro Hero 3 Black."
