How to Stay Safe in the Ocean. Any experienced lifeguard will warn you about a deadly phenomenon that claims the lives of more than 100 American beachgoers every year. In fact, about 80% of all rescues that lifeguards make have a connection to this danger. No, it’s not sharks or poisonous jellyfish or anything like that. The most treacherous thing that can happen to you in the ocean is a totally natural phenomenon called a r...
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