About 45 years ago, I guess, I was 5, and my family went to France. The weather was terrible, and they nearly cancelled the crossing. I recall the hovercraft bouncing around, a waiter trying to serve drinks, and lots of people looking very sick and trying not to throw up. I was young enough to think it all great!
I have no idea which machine we went on, but it was probably one of the larger ones as we had our car onboard - they had to chain the cars down!