Beach safety flags are mandated by the United States Lifesaving Association and the International Life Saving Federation. So luckily, they are fairly standardized and there are only a few flags to remember! But while many manufacturer's variants (not shown here) add text to the flags (attempting to make their messages easier to understand), knowing the basic colors and patterns is quite important. Being aware of the flag types will help you and your friends and family be safe in the surf.
Basically, any red flag is the most serious of all beach warning flags—red flags warn swimmers of serious hazards in the water. One red flag means that the surf is high or there are dangerous currents, or both. Though you can still swim if there is a red flag, you should use extreme caution and go in the water only if you’re a strong swimmer. (If you see two red flags together, immediately get dry unless you have a death wish.) If you see white flag with a black shark diagram it means that a shark is currently near the beach, and beach users must get out of the water. Usually, a siren is sounded, when the white flag is raised. If you see a black flag with a shark on it that means that the conditions for spotting a shark are poor, but no sharks have currently been seen.
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