You’ve traveled halfway around the world, the water is a perfect turquoise, and a majestic manta ray is gliding toward you. You go to take a look, and… nothing. Your mask is a wall of white fog. Mask fogging is the #1 annoyance for divers, but it doesn’t have to ruin your dive. We’ll explain the science behind the “fog” and give you five proven ways to ensure your next dive is seen in high definition.