The jetski also known as a water scooter, is a small water craft meant for singular person use. These vehicles were fast and nimble and are often used in seaborne activities as racing or water skiing. Most jetskis are powered and propelled by pump-jets.
At several lakes in Appalachia.
The jetski only appears in Fallout 76.
This article is too short to provide more than rudimentary information about the subject. You can help Nukapedia by expanding it.