Get ya 24 hour Bonine or Dramamine. Take it at night before you go to bed and you won't be drowsy during the day. Most important, start taking it 2-3 nights before you cruise!! It needs to get in your system. If you wait till your on the cruise and feel sick then take them you will spend 2 days in your cabin till they get in your system. Better to be safe then waste 2 days. Take it from someone that has severe motion sickness. I even have to take it before any surgery with anesthesia.