Hidden cameras are a big problem at Korean waterparks.

Apparently, perverts are using cameras that look like watches, car keys and pens to obtain footage of park guests showering. According to the Korea Times, about 200 officers will work undercover to clamp down on the use of concealed cameras at 97 waterparks across the country.

While such voyeuristic technology can be used for illicit purposes, it's also being used to bust bad behavior. In a related story, female lifeguards in China are hiding cameras on their bathing suits to catch creeps who pretend to drown so that they can grope their rescuers.

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