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Black Diamond Spot 400-Rrechargeable, comfortableCheck price on Amazon →Sunfish Pond at a glance: A 9.6-mile loop in the Delaware Water Gap that climbs the Appalachian Trail to a glacial pond, one of New Jersey‘s natural landmarks, and returns down the rocky, creek-crossing Dunnfield Creek trail. Rated challenging, and the difficulty is real: it is long, relentlessly rocky, and involves multiple stream crossings that can be tricky when water is high. Wear sturdy shoes, go clockwise, arrive early for the popular I-80 trailhead lot, and save it for dry conditions.
Sunfish Pond is the destination that makes this long loop worth the effort: a glacial lake high on the Kittatinny Ridge, ringed by boulders and forest, and known as one of New Jersey’s natural wonders. Reaching it means a demanding day that combines the Appalachian Trail with the rugged Dunnfield Creek ravine. Hikers rate the payoff highly, but the trip reports are unanimous on one point, that this is a genuinely challenging, rocky hike rather than a casual walk to a pretty pond.
Most hikers do the loop by climbing one way and descending the other, and the two halves feel completely different. The Dunnfield Creek side follows a tumbling stream up a shaded hemlock ravine, crossing the water repeatedly on rocks and the occasional bridge. These creek crossings are a defining feature of the hike and a genuine highlight in normal conditions, though they become slow and slippery, or even impassable, when the water runs high after rain or snowmelt.
The other half runs along the Appalachian Trail across the ridge, rockier and more open, with occasional views out over the Delaware Water Gap. Sunfish Pond itself sits at the high point of the loop, a quiet glacial lake where hikers stop to rest, take photos, and add to the small rock cairns and sculptures that dot the shoreline. Swimming and wading are not permitted, as the pond is a protected natural area, so it is a place to look rather than plunge in.
Hikers overwhelmingly recommend traveling the loop clockwise, ascending Dunnfield Creek and returning on the AT, which many find makes for a more comfortable grade and gets the wettest, most technical section done while legs are fresh. The route is long enough and rocky enough that most people plan on roughly four hours or more of steady hiking.
Challenging is accurate, and the difficulty comes from three things stacked together: distance, rock, and water. At nearly ten miles the loop is a full day, and the trail is rocky for long stretches, which is the single most common theme in trip reports and the reason hikers stress the importance of sturdy footwear. Rolled ankles and slow going on uneven stone are the usual complaints from those who underestimate it.
The creek crossings add a variable that changes with the weather. In dry conditions they are a fun rock-hop; after heavy rain they can be deep, fast, and hazardous, and hikers have reported turning back or getting wet feet when the water was up. Bugs can be thick in summer near the water, and some sections get overgrown or muddy. The honest summary is that this is a rewarding but strenuous hike best attempted by prepared hikers in good conditions.
The prime season runs March through November, with late spring through fall the most reliable. Early fall is a favorite, when the crossings are typically low, the bugs have eased, and the ridge foliage colors the views over the water gap. Late spring brings lush green in the Dunnfield ravine but also the highest, trickiest stream crossings from snowmelt and rain.
Summer is popular but hot and buggy in the low creek sections, so an early start helps on both counts. Winter turns the loop into a serious undertaking, with icy rock and cold crossings that demand traction and experience, and it is best left to well-equipped hikers. In any season, checking recent conditions for water levels on Dunnfield Creek is the smartest planning step, since the crossings make or break the day.
Parking is at the Dunnfield Creek area off Interstate 80 near the Delaware Water Gap, and the lot fills early on weekends and fall weekends especially, so arrive early or have a backup plan. There are restrooms near the trailhead but no services on the loop itself, so carry plenty of water and food for a full day out.
Sturdy, grippy footwear is the single most important thing to bring, given how rocky the trail is and how many crossings you will make. Trekking poles help with balance on the wet rocks. Dogs are welcome on leash and many hikers bring them, though the distance, rock, and crossings make it a demanding outing for a dog. Bring a map or downloaded route, as the junctions where the AT meets the connector trails can be easy to miss.
Sunfish Pond sits within the Delaware Water Gap National Recreation Area on the New Jersey side, making it an easy target from the New York and New Jersey metro areas despite its wild feel. Many hikers pair the pond with a side trip to nearby viewpoints or treat it as a training hike for longer mountain days, since its length and rockiness build exactly the right kind of stamina.
Sunfish Pond earns strong marks from the people who complete the loop, with the large majority calling it a rewarding hike and singling out the creek crossings and the glacial pond as the highlights. The steady refrain in their accounts is preparation: hikers who came in sturdy shoes, went clockwise, and picked a dry stretch of weather had the best day, while those who underestimated the rock and water remember the struggle more than the scenery.
That is the honest read on this Delaware Water Gap classic. It is long, rocky, and genuinely challenging, and the glacial pond at the top is a fitting reward for the effort. Time it for low water and dry rock, wear the right shoes, and Sunfish Pond delivers a memorable full-day loop through some of the best terrain in northern New Jersey.
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