Start behind Sugarlands Visitor Center and follow Fighting Creek Nature Trail upstream. Cross the footbridge, then turn right at the falls junction. Tree markers and a large, unusually shaped sycamore make the walk part of the stop. The falls route is 0.7 mile round trip and usually takes 30 minutes to an hour. If you want more, continue straight after the bridge for the one-mile loop past John Ownby Cabin; that adds about 30 minutes.
Parking and public restrooms are at the visitor center, and the lot can fill on summer weekends. The park has assessed a section of the falls side route and offers GRIT Freedom Chairs for that segment; check the current trail-access details if you need mobility support, since this does not establish the whole walk as step-free.