Photos: Sean Phillips seemingly walks on water as he demonstrates the JetLev water propelled jet pack that is strapped to his back at the Yacht & Brokerage Show on February 17, 2012 in Miami Beach, Florida. The pack allows water supplied via a tethered supply hose to act as the jet propulsion system. The boat unit that it is tethered to delivers low pressure, high flow water through the 33 ft (10,058 m) hose to the jetpack where thrust is generated by forcing the water through the nozzles located on either side of jetpack allowing the rider to fly. (Photo by Joe Raedle/Getty Images)