The Delaware Water Gap National Recreation Area is less than two hours from NYC. A National Park Service forest preserve on the border of New Jersey and Pennsylvania, where the Delaware River cuts through the Appalachian Mountains, it features a valley 1000 feet deep. Twenty-eight miles of the Appalachian Trail goes through the park. Known for hiking trails and incredible scenery, the Delaware Water Gap is also great for camping and river trips. Whether canoeing or kayaking, a trip down the Delaware River is an unforgettable experience. There is a large riverside campground in Dingman's Ferry.