Preserving the Depths of Mammoth Cave National Park

Beneath Kentucky’s rolling hills, American Hiking Society volunteers spent a week immersed in the beauty and history of Mammoth Cave National Park, a place where winding rivers, lush forests, and the world’s longest known cave system come together in one unforgettable landscape.
Working alongside National Park Service staff, volunteers took on a wide variety of projects above and below ground. From trail rehabilitation and erosion control to historic cemetery maintenance and cave restoration, the team played a vital role in protecting the park’s unique karst terrain and rich cultural heritage. “We did good hard work repairing and building post and rail fences on Friday,” one volunteer shared proudly, reflecting the crew’s dedication to hands-on conservation.
The week’s highlight came on Saturday during a canoe-based cleanup along the Green River, where volunteers paddled through peaceful waterways, collecting litter and helping keep this scenic stretch of Kentucky pristine. “The canoeing Green River cleanup was definitely my favorite part,” one participant said. “It was such a beautiful way to give back while getting to explore the park from the water.”

In their free time, volunteers joined a guided tour through Mammoth Cave’s vast underground chambers, marveling at the scale and mystery of the formations hidden beneath their feet. Evenings brought time to unwind under star-filled skies in this certified Dark Sky Park, swapping stories and laughter around camp.

Photo Credit: John Wall

Photo Credit: John Wall
Volunteers left with a deep sense of pride in their work and the difference they made. As one crew member shared, “It felt good to know our efforts will help others safely enjoy this incredible place for years to come.”
—
Stay connected by joining an upcoming Volunteer Vacation and watching for our 2026 trip calendar. Sign up for our newsletter for updates and opportunities.