If I were loaded and could stand to be in the 650-degree Texas summer heat longer than it takes to sprint from the house to my car, I would totally buy the Jetlev Flyer. The thing is a combination of a jet ski and a jetpack.
You strap into the pack, which has twin nozzles behind the pilot and a pair of handles that control the thrust allowing control over altitude. The long yellow hose you see in the picture here attaches to a motor on a boat that trolls along behind the Jetlev Flyer.
That hose pumps the water that shoots out of the nozzles to let the pilot fly over the water. I would assume that the entire thing floats to keep you front drowning after the inevitable crash. I want one of these so bad, but the $135,000 asking price is out of my league.