Scuba diving is basically swimming underwater (in sea or ocean) using SCUBA - Self Contained Underwater Breathing Apparatus. Scuba diving is a rare and extreme sport.... more »
While still dry, spit into your goggles or mask. Rub the spit with your fingers over the whole inner surface of the goggles/mask. Submerge the goggles/mask into the water for about 10 seconds.... more »