Probably only when they are pulling out of ports. Thats when those thrusters are engaged and cause the vibration. I was in the aft recently and only noticed it once when I was in my cabin, but noticed it in the dining room more for some reason.
The vibration doesnt go on all the time so don't worry.
I was on the Liberty on the Riviera Deck in cabin 1426 (Cat. 1A inside). I loved that cabin. I never felt any more motion than anywhere else in the ship, the hall was very quiet becuase it was in the back and I was right around the corner from the aft (back) elevator bank. This is the one that takes you right up into the buffet, by the aft pool and to both dining rooms. It is the least used of all the elevators.
Being on the Riviera on port day is great because you don't have to wait for the elevator to get off the ship. Yuo just walk down the long hall and skip down the stairs and the gangway is right there.
I liked the back of the Riviera Deck and I am sure you will do.
(cruzin' solo by design)
Freedom ('09), Imagination ('08), Victory ('08), Destiny ('08), RCCL Navigator ('08), RCCL Majesty ('08), Glory ('07), Liberty ('07), Fantasy ('07), Destiny ('06), NCL PofAm ('05), Fascination ('04), Victory ('04), Fascination ('04), RCCL Voyager ('03), Fantasy ('99)
I think you'll find you actually feel LESS movement down on the Riviera Deck than you would higher up. It's like being in a tall building (best example I could think of) on a windy day. the higher up you are, the more you feel the sway. Enjoy your cruise! We sail on Liberty in October and can't wait!!!!!
when we cruise we get inside cabin midship on the riviera we never feel
movment of the ship we always it quiet on the riviera another reason we
like the riviera deck is when your in port and your go ashore its real easy
to get off and off the ship you only have one flight of stair up and down