A personal watercraft (or PWC) is a small recreational watercraft in which the operator is sitting, standing or kneeling on the vessel rather than being completely inside of it (as is the case with a standard boat). PWCs use inboard jet drives (engines that sit inside the watercraft and receive power from a jet pump) as their main propulsion system, similar to jet-powered boats.

Perhaps the easiest way to call to mind a personal watercraft is to think of a Jet Ski or Sea-Doo, two of the most popular brands of PWC.

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