My family & I had a great Labor Day picnic at Samuel S. Lewis State Park in Wrightsville, PA. Just across the Susquehanna River from Lancaster County, Samuel S. Lewis is 85 acres with an incredible view. It's worth the drive just to see the vistas of the river and Lancaster County beyond. We were there for a spectacular sunset which lit up the hilltop park.
Samuel S. Lewis State Park is dominated by 885 foot Mount Pisgah. There is a viewpoint with one of those sets of fixed binoculars that you need quarters to activate - we didn't have any. Still, the view was wonderful even to the naked eye. There is about 1 mile of hiking trails with moderate elevation change. Three picnic pavilions may be reserved up to 11 months in advance for a fee by calling 1-888-PA-PARKS. Unreserved picnic pavilions are available free on a first-come basis. We used one of the many free-standing picnic tables set about the hilltop area. Parking is plentiful & nearby to the bulk of the picnic areas.
One interesting possibility at "Sam Lewis" is kite flying at the crest of the ridge. There is plenty of room to spread out and catch some breeze. Local enthusiast groups gather here periodically. The park closes at dusk so get here early.
Take an afternoon and drive over to Samuel S. Lewis State Park - you'll enjoy the time away.