Start at the Dark Hollow Falls Parking Area at mile 50.7 on Skyline Drive. The route drops about 0.75 mile to the falls and returns on the same path, for roughly 1.5 miles round trip and about 440 feet of climbing. The broad path follows the stream, but it is steep and rocky; when it’s wet, the footing can be slippery. The downhill leg is the easy part. Give yourself time for the climb back, which can feel strenuous even though the walk is short. Plan on at least about an hour and 15 minutes, more if you stop for breaks.