I did parasailing on a cruise once...it does not give you the "rush" or the "roller coaster" type thrill you would expect. It is more like an extreme calm and the altitude does not have the same fear factor as other things like looking out the window of a skyscraper. I mostly enjoyed the view and the only concern I felt was worrying that I would drop my camera while I took pictures. (On the other hand, the zip line takes your breath away -- I'm going with the group on Tuesday -- loved it in Costa Rica.)