answer:The sharks find you wherever you are, especially if you’re injured. Here’s an account of the USS Indianapolis in WWII. The sharks fed off the extremities of the sailors in the water, attracted by the scent of the dead bodies, and by the motion of the limbs. It’s the kicking of the legs that attracts the sharks, because it looks like a stationery fish. According to this, sharks are capable of diving up to 9,000 feet, so they don’t just hang out in the shallow water.