Pisgah State Park

About Kilburn Pond at Pisgah State Park

Tucked deep within New Hampshire's largest state park, Kilburn Pond rewards those willing to earn their swim with one of southwestern New Hampshire's most serene and unspoiled natural swimming experiences. This is not a beach with a parking lot and a snack bar — it's a living, breathing piece of old-growth wilderness where the water is cool, the crowds are thin, and the loudest sound is usually a loon or the wind moving through the canopy overhead.

The Setting and Landscape

Pisgah State Park sprawls across more than 13,500 acres of unbroken forest in Cheshire County, and Kilburn Pond sits at the heart of it, cradled by wetlands and surrounded by old-growth trees that have never been clearcut. The pond is part of a complete watershed entirely contained within the park — meaning the water flowing into it passes through nothing but wild, undeveloped land. You'll approach along a 0.7-mile trail that winds through dappled forest light, crossing a rustic log footbridge that feels like something from a storybook. The uneven terrain demands your attention, but the payoff is immediate: the pond opens up before you, edged in granite boulders and fringed with forest reflections that seem almost too perfect to be real. In fall, those reflections turn amber and crimson. In spring, wildflowers push up along the trail margins. In summer, the whole scene hums with insects and birdsong.

Swimming at Kilburn Pond

The water is clear and cool — the kind of cool that makes a July afternoon feel like a gift. Large, flat rocks line stretches of the shoreline, giving swimmers natural platforms to sun themselves, leap from, or simply sit and dangle their feet before slipping in. Because this is an unofficial swimming spot within a protected state park, there are no lifeguards and no designated swim areas, so visitors should exercise caution and swim with a buddy. The pond's natural bottom and undeveloped edges mean you're entering the water on nature's terms, which is precisely the appeal. Wildlife sightings are common — keep your eyes open for herons, turtles, and the occasional osprey working the surface.

Plan Your Visit

Kilburn Pond is an unofficial swimming destination, so come prepared for a self-sufficient experience. Facilities are unknown, so bring everything you need: water, snacks, a towel, and sturdy footwear for the hike in. The trail involves uneven terrain and a log footbridge crossing, earning it a moderate difficulty rating — it's accessible to most healthy adults and older children but may challenge young toddlers or those with limited mobility. There is no fee to enter Pisgah State Park. Camping is not available within the park itself. The best time to swim is June through August, when water temperatures are most welcoming. Fall draws hikers and photographers chasing peak foliage from September into October. Kilburn Pond is accessible from several nearby communities — the small city of Keene is the largest hub in the region and offers restaurants, lodging, and supplies, while the quieter towns of Winchester and Hinsdale sit closer to the park's southern reaches. Plan to arrive early on warm summer days to secure the best rocks and enjoy the pond at its most peaceful.