Hadlock Brook Trail

Hadlock Brook Trail is a serene, moderately challenging forest walk that traces a mossy stream to Hadlock Falls and the park’s photogenic stone carriage‑road bridges. Expect a quieter vibe than Acadia’s big‑name peaks, with spruce–hardwood forest, brooks, and bits of granite ledge as you edge toward higher terrain near Sargent Mountain.

Plan on roughly 3.2 miles total, with about 1,014 feet of elevation gain, depending on where you start and whether you fold in carriage roads. The trail itself functions as a connector, so most people hike it as an out‑and‑back to Waterfall Bridge and Hadlock Falls, or turn it into a loop using nearby carriage roads or Maple Spring Trail. Footing is classic Acadia: rooty, rocky, and occasionally boggy, with some steeper pitches near the Sargent South Ridge junction.

The headline feature is Hadlock Falls—lovely in spring or right after rain, but often a trickle in late summer. You’ll also pass signature Rockefeller‑era stonework like Waterfall Bridge (and nearby Hemlock Bridge), which are as much the draw as the waterfall. Forest sections are lush and tranquil, with vernal pools and abundant birdlife; partial views open on granite ledges higher up.

Best time to hike: spring and early summer for strong waterfall flow and vivid greens; autumn for foliage, cool temps, and fewer bugs. In winter, experienced hikers can explore it with traction, but expect ice and potentially hazardous conditions.

Tips: Start from Parkman Mountain Trailhead or the Upper Hadlock Pond area for straightforward access. Follow blue blazes carefully—intersections with carriage roads can be confusing. Bring sturdy footwear and insect repellent, and don’t expect facilities on the route. Want bigger views? Pair this with Parkman Mountain or Bald Peak for a full day that blends waterfalls, historic bridges, and summits.