Visited National Parks Map

Congaree National Park protects the largest intact expanse of old-growth bottomland hardwood forest remaining in the southeastern United States. The Congaree and Wateree rivers periodically flood the plain, delivering sediment and nutrients that support unusually tall trees, rich biodiversity, and a designated wilderness landscape just southeast of Columbia. The park is often casually called a swamp, but it is more accurately a floodplain forest, with water levels that can transform trails and paddling conditions quickly.

Most first-time visitors start with the Harry Hampton Visitor Center and the 2.4-mile Boardwalk Loop, an accessible-feeling introduction to bald cypress, tupelo, loblolly pine, wetland sounds, and changing water levels. Stronger hikers can continue to trails such as Weston Lake Loop, Oakridge, or Kingsnake, while paddlers explore Cedar Creek or the Congaree River Blue Trail. NPS also highlights fishing, primitive camping, ranger programs, accessibility resources, and the park’s human history, which spans at least 10,000 years.

Congaree is free to enter, and NPS notes that no entrance pass is required. A short visit can take two hours for the boardwalk and visitor center; a half day allows a longer hike; a full day or overnight works best for paddling or backcountry exploration. Spring and fall usually bring more comfortable walking weather, while summer can be hot, humid, buggy, and thunderstorm-prone. Flooding can happen with little warning, so NPS advises checking Cedar Creek and Congaree River levels before hiking or paddling.

The park is especially rewarding for birders, tree enthusiasts, paddlers, families seeking an easy boardwalk, photographers who like misty forests, and visitors to Columbia looking for a nature-focused day trip. The synchronous firefly season is a major annual event; current 2026 reporting placed the ticketed viewing event in mid-May, with lottery access and evening closures during the event window. Nearby pairings include Columbia’s museums and restaurants, the South Carolina State House, Riverbanks Zoo and Garden, and the Congaree River Blue Trail.

Visitor Tip: Check flood levels, trail closures, and mosquito conditions before leaving Columbia, then bring insect repellent, water, and shoes that can get muddy. For firefly season, do not expect casual walk-up access; follow the current NPS lottery and closure rules.

• NPS verified old-growth floodplain significance, activities, free admission, wilderness safety guidance, unreliable cell reception, flooding risk, and mosquito warning.
• Independent sources verified common visitor routes, Columbia proximity, paddling and camping context, and 2026 firefly lottery timing.
• An official South Carolina tourism page for Congaree did not reliably resolve during research; visitors should rely on NPS for current access, firefly, and flood information.