"I recommend the Brook Trail if you want a beautiful and very doable zen trail along the brook until you get to hidden Pine Lake. It's an out and back and takes about 2.5 to 3:00 hours. For a more adventurous hike, I take the 7 Hills trail. I often do the first four hills, then come back along the brook, 2.5 to 3 hours. I usually do it in under two hours. There is about a 1,400 ft elevation gain. If you would like to extend the hike go to the fifth hill across the brook and loop back. The fifth hill will also add another 60-90 minutes and make the total elevation gain about 1,800 ft. We recommend that you download All Trails App before heading out."
Harriman State Park, located in Rockland and Orange counties, is the second-largest park in the New York State parks system, with 31 lakes and reservoirs, 200 miles of hiking trails, two beaches, two public camping areas, a network of group camps, miles of streams and scenic roads, and scores of wildlife species, vistas and vantage points. Harriman State Park's major facilities include Lakes Welch, Sebago, Tiorati and Silvermine, the Anthony Wayne Recreation Area, Sebago Cabins and Beaver Pond Campgrounds.