What a nice surprise! These Miami beachgoers were simply enjoying their time on the water when they saw something large floating toward them. Upon further inspection, it was a brick of cocaine — like, a *big* brick of cocaine. So big, in fact, that U.S. Border Patrol apparently evaluated the beast at around $4 million.

Forget metal detecting; if you really want to find treasure on the beach, take a swim around Miami. Just be ready to deal with some unsavory people if you actually find anything.