While they’ve been considered things of legend for ages, or the exaggerated tales of mariners, rogue waves (or freak waves, or monster waves, or whatever you’d like to call them) are indeed real and something every mariner should be aware of. In the last few years alone, rogue waves were blamed for the deaths of two American tourists during separate incidents in Cabo san Lucas, as well as the deaths of four fishermen in the Gulf of Mexico. And since the turn of the century rogue waves have damaged several cruise ships and caused a number of other fatalities. So when you’re cruising out there, keep an eye on the horizon, and if the seas kick up remember: One hand for you, one for the boat. If you’d like to learn more about the phenomenon, we recommend picking up a copy of Susan Casey’s excellent The Wave: In Pursuit of the Rogues, Freaks, and Giants of the Ocean.