Moderate four-and-a-half-mile loop hike. Highlights include Revolutionary War-era trails, old castle, water towers, views of Ramapo Lake, Wanaque Reservoir, Norvin Green State Forest, Campgaw Mountain, and even the New York City skyline. Charlie’s hikes offer an opportunity to visit and explore some of the many special places in the Highlands region. Participants must dress appropriately for the conditions; bring lunch and plenty of fluids. Hikes meet at Weis unless otherwise noted. Cost: $5 members, $8 nonmembers.