In one form or other it is possible for anyone on the trip to feel sick, even on calm days. However, becoming unexpectedly ill as a result of seasickness should not be a cause for embarrassment. It can happen to anyone. If you have a tendency to get seasick or motion sick in a car, we strongly recommend you consider a prescription patch for the trip and at a minimum, take over the counter medication like Dramamine or Bonine starting the night before! It does little good to start taking these over the counter medications once you are feeling queasy. One mistake people make is not taking a large enough dosage of medicine to prevent seasickness. The dosage is typically calculated for a 150 pound person.
We have learned over the years that what you eat and drink before and during a trip is crucial to avoiding seasickness; relatively bland, easily digestible food is best. Pass on the predawn bacon, egg and cheese sandwich! Minimize alcohol consumption. Getting sick will definitely ruin your day and can make the trip unpleasant for the other guests; so we urge you to err on the side of caution.