Japanese Jet Pack
I don't think water rockets were meant to be used like this.
Oh those wacky Japanese television shows! They provide a never ending supply of wacky entertainment. This video is no exception. I don't think you need to understand Japanese to see what's going on here. Some poor sap is strapped to a bunch of water rockets to launch him into the air. The guy throwing the life preserver ring has slightly miscalculated the distance the guy actually flies.
Watch Japanese Jetpack.