Snuba in St Thomas! OK, the video is just of us snorkeling, but the adventure was to snuba. Someday I'll invest in a submersible video camera. Snuba is a combination of SNorkle and scUBA. You wear a weight belt, and learn how to breathe using a scuba-style regulator before you submerge 20 feet below the surface. Your air tank is in a small raft on the surface, and you are connected by a truly unobtrusive hose. Very exhilarating, if you've never done more than snorkel before. My favorite part was swimming above and thru someone else's bubbles.