Ever wanted to walk on water or hover in midair? This water-propelled jetpack experience in San Diego launches you up to three stories above the surface of the sea. First, a certified flight instructor acquaints you with basic jetpack techniques like how to take off and steer. Then, twin nozzles blast high-pressure beams of ocean water, elevating you as high as 30 feet (9 meters) in the air to perform superhuman feats while you communicate via a headset. Choose a 15-, 25- or 40-minute flight time.