The sun had just set, the water was ink black. My small focus light lit up an area about 6 feet out and 3 feet wide. I could see the silhouette of bulls sharks on the perimeter...when the giant Hammerhead would come into view. I could first see the white of her head, then her teeth, then her muscular body powering in to greet us. I could feel the rush of water as she turned inches from my camera and swam back into the black. The happened for close to 30 minutes, an unforgettable experience