Puffin Cruise Tour

My friends and I are heading to Bar Harbor in 9 days and we'll be there for a week. We really want to do the Puffin Cruise Tour, but I have horrible motion sickness. For those who have done this or a similar boat tour, is the water super choppy? I'd honestly rather miss out on this than go through a day of feeling horrible from motion sickness. Even if I wear the patch, take dramamine or other medication, I can still feel extremely nauseous.