Ricketts Glen State Park, about a three hour drive from Philadelphia.
Ricketts Glen State Park has one of the largest congregation of waterfalls, about 23, and to view them all is about an eight mile hike.
With the constant rain that we experienced I was hoping that the water falls would be overflowing, and the foliage lush green. I took a couple days off work, and it was well worth the trip. I was not disappointed.