The Alum Cave Trail is the Great Smoky Mountains' most popular hike—and for good reason! This 11-mile round-trip adventure leads you through fascinating geological features and offers jaw-dropping views along the way. As you climb 2,853 feet in elevation over 5.5 miles, you'll reach the summit of Mount LeConte, the third highest peak in the Smokies, standing tall at 6,593 feet. Get ready for a rewarding challenge with every step!