Parking
Park at Harry Hampton Visitor Center. Firefly Trail begins behind the building and reaches the Sims/Boardwalk junction in about a quarter mile. Restrooms and picnic tables are at the Visitor Center, not along the trail.

#7 of 9 trails in Congaree
Congaree National Park, SC
A level old road to a creek bridge and park history.
Overview
Map & elevation
Plan your hike

The highest, rockiest slopes around here are a summer buffet for grizzly bears.
Congaree Tour Guide
Parkwolf is a GPS audio tour guide for Congaree National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.
Recorded for this trailhead
Harry Hampton Visitor Center and Boardwalk“You're approaching the Harry Hampton Visitor Center, where exhibits introduce the forest and the people who lived and worked here. Look for the wooden mosquito meter before heading out.”
Plays as you drive up to this trailhead in the Parkwolf Congaree Tour Guide.
More stories near here in the app
Trail guide
Sims Trail is an easy out-and-back along a broad, fairly smooth gravel road through Congaree’s floodplain forest. The park lists 3.2 miles round trip from Harry Hampton Visitor Center. Another route account measures the Sims road at 1.1 miles one way, plus a quarter-mile Firefly approach; a state listing gives a shorter 1.3-mile outing. Those totals do not match exactly. I’d use the park’s 3.2-mile visitor-center figure for planning and allow about 1½ hours.
From the back of the Visitor Center, follow Firefly Trail to the Boardwalk junction and the marked Sims gap. The wide gravel road continues south, crossing the Boardwalk twice and passing through low, wet forest. A small crossing at Tennessee Gut comes before the Weston Lake junction and its old clearing. Continue over the Cedar Creek footbridge to the Oakridge junction, then turn around. The short Wise Lake spur is optional; its extra distance is not stated clearly, so check the map before adding it.
Sims follows an old hunting-club road used by conservationist Harry Hampton. The clearing at the Weston Lake junction was a club site where Hampton belonged. He wrote about the outdoors for The State and helped build support for protecting the old-growth floodplain; Congaree became a national monument in 1976.
Wise Lake is a shallow oxbow left by an old bend in the Congaree River. Cypress knees rise around its muddy edge, and their purpose is still debated. The main Sims route does not require the spur. Leashed pets are allowed on park trails, with a leash no longer than six feet.
Wildlife
146 sightingsAlligatorMost seen around 6 PMSighting map
242 sightingsWild BoarMost seen around 6 PMSighting map
291 sightingsBarred OwlMost seen around 7 PMSighting map
248 sightingsCottonmouthMost seen around 6 PMSighting map
13 sightingsWood StorkMost seen around 8 AMSighting map
61 sightingsGreat Blue HeronMost seen around 7 AMSighting mapSighting maps show where each species has been reported across Congaree. Wildlife moves, so no sighting is guaranteed.
Keep exploring
EasyBoardwalk Trail2.6 mi · 1.5 hr · At the trailheadLevel boardwalk, old-growth trees, and a Weston Lake overlook.
ModerateWeston Lake Trail4.5 mi · 2.5 hr · At the trailheadA 4.5-mile loop through old growth to Weston Lake.
EasyFirefly Trail1.8 mi · 1 hr · At the trailheadAn easy woodland walk to Congaree's spring firefly display.
ChallengingOakridge Trail7.1 mi · 4.5 hr · At the trailheadOld-growth oaks and flooded guts make this a navigation-first hike.
EasyLongleaf Trail0.6 mi · 20 min · 0.5 mi awayA short forest link from Longleaf Campground to the Boardwalk.
ChallengingKingsnake Trail7.4 mi · 4 hr · 2.2 mi awayA flat, long floodplain walk with sloughs, bridges, and tricky wayfinding.
EasyBates Ferry Trail2.2 mi · 1.3 hr · 11.2 mi awayA short, flat walk on a historic road to the Congaree River.
ModerateFork Swamp Trail0.6 mi · 24 min · 11.3 mi awayA short loop to an oxbow and its shaded riverbank.
Picnic area · At the trailheadCongaree Picnic ShelterA group picnic pavilion with grills near the Boardwalk Trail.
Visitor center · At the trailheadHarry Hampton Visitor CenterMaps, exhibits, and a film make this a smart first stop.
Sight · 0.4 mi awayMoonshine Still (Boardwalk Stop 15)A distant glimpse of an iron still from Prohibition.
Campground · 0.5 mi awayLongleaf CampgroundWalk-in tent sites put you close to Congaree’s trails.
Campground · 0.5 mi awayBluff CampgroundA six-site hike-in camp tucked among Congaree’s upland trees.
Sight · 0.6 mi awayRichland County PineA former state champion with a 1750s backstory.
Sight · 0.6 mi awayWeston Lake OverlookLook for turtles beside this 2,000-year-old oxbow lake.
Sight · 1 mi awayCongaree National Park SignThe entrance marker comes a mile before the visitor center.Parkwolf’s Congaree ranking