Scuba divers enter the ocean with the hopes of seeing sharks and other animals in their own environment. Most divers understand that sharks are rarely a threat to humans who act respectfully. But when large sharks swim directly at a diver to inspect them with curiosity, it is still a very intimidating experience that can send chills down the spine of even the most experienced diver. These hammerheads and Galapagos sharks gather in the waters around Darwin Island. They come here for the abundant fish that are brought by the strong currents that converge here. Hammerheads congregate in huge schools, swimming lazily in the current by day and hunting actively by night. Scuba divers come here to see these formidable predators in great numbers. Sitting on the rocks, divers are treated to a live show that would rival even the most vivid Imax theatre production.