Great Smoky Mountains National Park Welcomed More Than 11.3 Million Visitors Last Year, Setting A New Record For The Second Year In A Row. According To A Park News Release, The Park Saw A Slight, 0.2 Percent Increase Compared Its 2016 Visitor Totals. Its Highest Visitation Month Was July, Followed By October And June. Last Year, The Park Hosted The Largest Special Event In Its History During The Solar Eclipse In August.