WILDLANDS CONSERVANCY SOUTH MOUNTAIN PRESERVE
This 4-mile, single track trail is in a beautiful preserve that's great for getting that heart rate up. Climb up to the top of the preserve or stay on the lower trails for an easier workout. There are lots of shorter route options, if you'd like. Plenty of rocky outcrops make this a great place to lose yourself in nature. 101 Klines Lane, Emmaus, PA 18049.