Cruise
I never got seasick as a kid. We went sailing more often than the average family, I’d presume, and I was always at home on the bow, rising from and falling into the waves with the crashing hull. Canoes, kayaks, dinghies, yachts…no problem. But a massive, floating luxury hotel kicked my ass. My mother said it was because I often could not see the horizon, which threw off my reference for balance. Who knows, there were lots of things to make one nauseous on that ship.