You are ready to get out in the fresh mountain air, and we are open for rafting! Operating since 1993, SMO Rafting is the most trusted outfitter on the Pigeon River. Located in a short drive from Gatlinburg and Pigeon Forge, TN, the Pigeon River Gorge offers breathtaking scenery and exciting whitewater rafting. Experience class III - IV rapids on the Upper Pigeon, or enjoy the fresh mountain air on a scenic float down the Lower Pigeon River. River safety has always been our top priority. You can trust SMO Rafting to provide a safe, healthy, and joyful day in the great outdoors. Rafting Season: March 1 - October 16. Guaranteed whitewater levels Memorial Day through Labor Day. Spring and Fall water levels vary and are unpredictable.