Its a large nature preserve and hike and bike trail. The trails are well well worn and wind throughout over 5 acres of thick woods which has many off the path areas for seclusion from vehicles and residences. Action anytime day or night, but more likely at night once the bikers and hikers have left.
Head west on W Illinois Avenue off S Hampton Road, then turn left on Pierce St. Just before a sharp right turn on Pierce, you will see a sign and a road that leads to an apartment complex, turn left on it. You will see the park on the right. There are two parking areas and it's the second one you should head to.