Rip Currents, killer jellyfish, rampant pollution and baby-eating dingoes; there are a lot of dangers facing beach goers.
With that in mind, we thought we would put together a brief primer, a PSA if you will, chronicling some of the most dangerous beaches in the world. So, whether it be limb-chomping sharks or drug violence, we've got it covered.
To find out which beaches should be tread on with caution, check out the slideshow below.
Of course, not all sandy stretches are harbingers of terror. Check out Dr. Beach's picks for America's best beaches and TripAdvisor's picks for the best beaches in the world.