Alum Cave Trail is the hike we recommend to almost everyone who stays at our Gatlinburg cabin. It earns that recommendation: 4.4 miles roundtrip to the bluffs, well-maintained, genuinely dramatic scenery, and close enough to the cabin that you can be on trail before most tourists have finished breakfast.
The first section runs through old-growth forest alongside Alum Creek to Arch Rock — a natural tunnel carved through a boulder field that you actually walk through. Past Arch Rock, the trail opens up to a ridge called Eye of the Needle, then continues to the Alum Cave Bluffs: massive overhanging cliffs streaked white with alum mineral deposits. The bluffs are a destination in themselves. Most people turn around here.
Beyond the bluffs, the trail continues steeply toward the summit of Mt. LeConte — 11 miles roundtrip from the trailhead, elevation gain of around 2,800 feet. That is a full-day commitment and worth it for strong hikers who plan ahead.
Parking at the trailhead fills fast — early to mid-morning on weekends in summer and fall. Arrive before 8:30 a.m. or plan a weekday hike. No permit is required. The trail is dog-friendly on leash for the first 2 miles to the bluffs.
