We did the Tranopy Adventure (FA12) at Mystic Mountain. It included zip lining, a ride on the bobsled, and lunch. You had to ride a ski lift to get to the attractions and the views were breathtaking. We would jump at the chance to do the zip lines again. The bobsled is a must, but wasn't something we would go back for. In the future we will probably do the zip lines and then head across the street to Dunn's River Falls. (which several people who zip lined with us were planning to do)
Any excursion that you take from Falmouth is most likely going to involve at least an hour drive though since many of the excursions are located closer to Kingston.