B.O.B. is an acronym for “Breathing Observation Bubble.” A good way to describe the BOB would be to say, “It is a high-tech underwater scooter without wheels.” Truly though, it is an effortless way to cruise around underwater for extended periods of time without the constraints of any specialized equipment attached to your person. No snorkel or regulator in your mouth, heavy gear on your back or leaky masks on your face and no complicated training needed. BOB is the future of underwater exploration.