If the Jaws movies weren't enough to scare you out of the water, this video might do the trick. Watch from a boat's-eye view as this diver sits trapped in his shark tank as a Great White charges right at the cage's opening. Luckily, the diver noticed the oncoming predator just in time to duck under his mouth and hide behind protection from the cage's bars. The shark swims off without attacking again and the diver escaped the attack unscathed.
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