When visiting the Great Smoky Mountains National Park in 2026, there are three "absolute" experiences you cannot miss. First is Cades Cove, a lush valley surrounded by mountains that offers the best wildlife viewing (including black bears and deer) and a look at historic 19th-century cabins and churches. Second is the climb to Clingmans Dome, the highest point in the park, which features a futuristic observation tower providing 360-degree views of the "smoke-like" mist that gives the mountains their name. Finally, you must experience the Alum Cave Trail, which takes you through unique geological formations and provides a stunning overlook of the park's rugged terrain. For those visiting in late spring, the Synchronous Fireflies at Elkmont are a world-famous natural phenomenon that requires a lottery ticket but is truly magical. While the "strip" in Gatlinburg and Pigeon Forge (including Dollywood) is fun, the true "soul" of the Smokies is found in these deep-forest vistas and historic clearings that have remained largely unchanged for over a century.