5Praia De Boa Viagem, Brazil

Praia De Boa Viagem is a hot destination for beachgoers — and (gulp) sharks. Between 1992 and 2012, officials reported 56 shark attacks, and one-third of them ended in death. Yikes! The majority of the attacks involve bull sharks and tiger sharks.

Boa Viagem is so dangerous that lifeguards don’t train on the beach anymore. They used to swim 131 feet out into the ocean, but they now do drills in a pool. Some of the attacks occur in shallow waters, where bull sharks breed and hunt.

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