Silver Spray Falls, Sussex County, within the Delaware Water Gap National Recreation Area.
Often called Hidden Falls because of its remote, little-known location. An unblazed trail leads to the falls from Mountain Road south of Walpack Center (about 1.4 miles past the Walpack Cemetery). The stream, an unnamed tributary of Flat Brook, forms a deep, narrow, rhododendron- and hemlock-filled ravine through the west slope of Kittatinny Mountain.
There are additional large waterfalls upstream; however, access is difficult. The trail all but disappears, and the ravine steepens sharply.