Glen Falls is actually comprised of three waterfalls: the Upper Falls, which measure 70-feet in height; the 60-foot Middle Falls; and the smaller Lower Falls which comes in at 15 feet. All three are accessible via a fairly steep, 3/4 mile trail.
From Cashiers, take Highway 64 towards Highlands to NC Route 106 South. Go about 1.7 miles and look for the sign to Glen Falls Scenic area on the left. The gravel road to the Falls (SR 1618) veers off immediately to the right after you take the left, so go slow. The road dead ends into the parking area.