Atlantic White Cedar Swamp Trail

The first section descends through stunted oak and pine, then the canopy closes into mature woodland. Expect stairs and short slopes, followed by a mix of sandy tread and pine needles before the boardwalk. The contrast happens quickly: dry, brighter upland gives way to cool shade and wet ground. Take the descent at an easy pace and save some energy for the loose sand on the way back.

About 0.6 mile of the route is boardwalk, winding through wet ground among cedar trunks, dark pools, sphagnum moss hummocks and fallen wood. Look down through the gaps between planks for the water, then back up into the close cedar canopy. For a photo, get low enough to use the planks as a lead-in to the trees; the boardwalk is what makes this otherwise hidden wetland visible. Stay on the deck rather than stepping into the swamp. Some sections can be muddy after wet weather.

Atlantic white cedar swamps are remnants of a post-glacial ecosystem, and this one is an unusual pocket of it on Cape Cod. Many of the Cape's wetlands were drained or turned into cranberry bogs; this one remained a swamp. The close cedar trunks, mossy islands and waterlogged logs make the boardwalk more than a shortcut through the woods: it is a walk through a wetland that is easy to miss from dry ground. The boardwalk was rebuilt and reopened in 2020, keeping the walking route above the soft ground.

The return uses a half-mile of soft sand on historic Wireless Road. Walking in sand takes effort every step, so keep time for this stretch instead of rushing through the boardwalk and expecting an effortless finish. The road is linked to the nearby Marconi station, which made this quiet stretch of Wellfleet part of a much larger story. On January 18, 1903, the station sent the first public two-way wireless messages between Europe and America: a message from President Theodore Roosevelt and a reply from King Edward VII, both in Morse code. In 1912, wireless communication from Marconi's station helped the Carpathia find and rescue more than 700 Titanic survivors.

Use Marconi Site Parking Area, 195 Marconi Station Road; from Route 6, follow the brown signs for the Marconi Site and White Cedar Swamp. The trail entrance is beside seasonal restrooms, so do not count on the toilets outside their operating season. The trail is open year-round, but no food or drinking-water service is listed at the lot or along the route; bring what you need. Dogs are not allowed on Cape Cod National Seashore walking trails. The short loop is not a continuous firm, level path: its stairs, slopes and sand matter if you need an accessible surface.