The trailhead is located in the Roaring Fork area, most often accessed from Gatlinburg. The parking area is clearly marked, and a secondary lot is located less than 1/10th of a mile ahead. There is no drinking water on the trail, so be sure to bring plenty along for the hike. On average, the route can take between 3 and 5 hours round-trip.

Though the NPS lists this as a moderate hike, novice hikers may find it more difficult due to a nearly 1,500' climb in just 2.7 miles. If you're up for the challenge, however, the view will surely take your mind away from the climb! The path is well-maintained and easy to follow, but sturdy hiking shoes are still recommended. Hiking in sandals is highly discouraged. As with most trails in the Smokies, neither dogs nor bicycles are allowed on the trail.

Should you be up for an even longer challenge, Rainbow Falls Trail continues pas the falls to the summit of Mount LeConte, one of the highest and most coveted peaks in the Smokies. If you have two vehicles, a popular option is to hike to LeConte the first day, spend the night at LeConte Lodge, then return down the Alum Cave Trail the following day.

Sources: https://www.nps.gov/grsm/planyourvisit/rainbow-falls-pyv.htm http://www.hikinginthesmokys.com/rainbow.htm