In youth, we discovered that VW Bugs are (were?) watertight. There was a steep hill, a narrow valley, and another steep hill on a back roadway not far from where we were moored. Upon coming to shore, in the winter, when it was raining, if Ebenezer was about we would all crowd into his bug and drive the back road to the grocery store.
Ebenezer would make sure everybody had their windows tightly rolled up and then he would gun the car up the first hill. We would fly and then plop upon the water where the momentum would float and carry us over the water filled depression to the next hill where we would regain road, go down that hill, turn around and do it all over again and again and over and over, laughing uproariously sometimes for a good part of an afternoon.