Quote Originally Posted by RBrooksC View Post
But, with that being said, is motion sickness really a problem on a cruise ship. I have heard both but more people said modern ships usually don't cause motion sickness.
The ships don't really cause anything, it's the ocean waves! Big waves can toss around a ship, even the big ones.

Check out "gyro pool table cruise" on youtube to get an idea of the ship movement. You're probably looking at the Jewel of the Seas video, which is 90,000 tons. The Dream/Fantasy are like 130,000 tons, the Magic/Wonder @ 85,000. That's all fairly minimal movement in terms of a normal cruise experience. You get above 20 foot waves and you are going to feel it, even on the big ships.

Caribbean, etc are normally pretty uneventful. Transatlantic or Pacific Ocean cruises I've heard are where you're probably going to have a better shot at big waves impacting your experience. That said, we've had a couple "bad" nights on Caribbean cruises. One time the upper decks were closed due to winds, one night we felt like we were on a motor boat on a lake the front end of the ship was bouncing between waves.