The Gulf Coast, United States
The Gulf Coast’s warm waters shimmer in the sun, beckoning those keen to cool off. Swimming here is not recommended, though. It might look a lot like paradise, but danger lurks beneath the gentle waves, and the risks here are significant.
Countless creatures favour the Gulf Coast conditions and not all are willing to share the water. Look out for sea snakes, stingrays and jellyfish. Not far from the shores, sharks are always on the prowl. Still willing to accept the risks? Be aware that the rip currents here can take the unsuspecting out to the deeps, where even greater dangers can be found.
Reports of a flesh-eating bacteria that is rampant out here should be sufficient to prompt a rethink. There are some great places to swim in the United States — but this is not one of them.