Don’t look vulnerable. Shark attacks on humans are extraordinarily rare, but if you want to avoid becoming the “one-in-a-million” person who suffers a shark bite, it helps to not look like their normal prey. Sharks target weak, struggling animals—those that lag behind their peers. So swim in groups when possible and minimize splashing, which looks like struggling.
Don’t look like a fish. Wear black swim fins, not brightly colored ones that will make your foot look like a brightly colored fish. Also, avoid wearing shiny jewelry, which can catch light the way fish scales do.
Know where and when to swim. When sharks can’t see well, they’ll bite at a moving object out of curiosity. Stay away from cloudy or murky water. Also, be aware that sharks typically hunt at dawn and dusk, and “don’t be available at meal time.”