Great Smoky Mountains National Park is America’s most visited, and for good reason. Its trails, views, and history make it one of the most important (and beautiful) parks in the National Parks Service.
As far as parks (well, at least parks outside of Alaska go), it’s big. It’s the 11th largest in the lower 48 and well over 500,000 acres. So to properly experience it, you need to spend at least two days exploring. Most visitors to Great Smoky Mountains National Park enter through the Sugarlands entrance in Tennessee, just outside the towns of Gatlinburg and Pigeon Forge. Others come in through the main southern entrance near Cherokee, North Carolina.