A man hovers over the water on a Jetlev-Flyer at the London Boat show at the ExCel exhibition centre, in London, on Jan. 7, 2011. The Jetlev-Flyer employs a 4-stroke engine and water nozzle reaction force, it can reach an altitude of up to 10 meters, a top speed of 35km/h and a cruising duration up to 2 hours.