Into the Granite: A Guide to Hiking Lost River Gorge & Boulder Caves

by Christina Marmonti

Have you seen this Instagram Reel? you know that Lost River Gorge in North Woodstock, NH, is basically a natural playground for adults and kids alike. It’s one part hike, one part obstacle course, and 100% worth the drive into the White Mountains.

But a 60-second video can’t capture the sheer number of stairs (spoiler: there are a lot) or the history behind those massive boulders. Here’s everything you need to know to tackle the gorge like a pro.

The Vibe: More Than Just a "Walk in the Woods"

Unlike a standard forest trail, Lost River is a 1-mile wooden boardwalk that weaves through a steep glacial gorge. The river "disappears" beneath the rocks (hence the name) only to reappear as stunning waterfalls like Paradise Falls.

The Main Attractions

The 11 Boulder Caves: This is the highlight. These aren't deep, dark caverns; they’re tight spaces formed by giant granite slabs.
- The "Lemon Squeezer": Exactly what it sounds like. Don't bring a bulky backpack.
- The Bear Crawl: Get ready to get on your hands and knees.
- Pro Tip: Every cave has an "easy" bypass if you aren't feeling the tight spaces!
The Giant Bird’s Nest: A massive wooden structure perched high above the gorge. It’s the ultimate photo op and offers a panoramic view of the White Mountain National Forest.
The Suspension Bridge: A fun, bouncy crossing that gives you a bird's-eye view of the river below.

Know Before You Go (The Logistics)

The Stairs: There are over 1,000 steps. It’s a workout for your glutes, so wear sturdy sneakers—flip-flops are a recipe for a twisted ankle here.
Reservations: They are almost always required in advance. Don't just show up and hope for the best!
Timing: Budget about 2 hours to do the full loop, especially if you plan on exploring every cave and stopping for photos.