Colombian cocaine smugglers hide beneath the waves

For the US Coast Guard at least, Bigfoot is real - and is proudly on display in Key West, Florida, on the southernmost tip of the United States.

The hulking monster in question, a sasquatch of the sea, is a 15-meter semi-submersible boat built by drug smugglers in the mangroves of Colombia to sneak tons of cocaine to the US.

Though it looks like a scaled-up bathtub toy, the gray vessel was built for stealth and marks a milestone in the cat-and-mouse game played by drug cartels and the police.