Sullivan Falls is a beautiful roughly 30 foot waterfall near Ricketts Glen State Park, but in State Game Lands Number 13. There is a large parking area with a huge stone labeled 'Sullivan Falls' and from the lot it is more of a short walk vs a hike back a trail to the top of the falls. However, the area is loaded with cascades and waterfalls and a great area for experienced hikers to explore.
It is an easy hike to view Sullivan Falls, there is a very steep narrow path that leads to the bottom of the falls, use caution if you opt to explore the waterfall further.