Yes! Best time is to drive in from 10 AM to 230 PM. Traffic is a bear so study your route and read the sign! If you aren't in the proper lane well before you get there you'll be in VA or MD. I drove truck in and out of Port Elizabeth several years and tried to arrive after midnight. For you well informed, Liberty State Park is In NJ and you can drive to it. The RV park is easy to get into and all gravelled over, no grass just lined parking. (Makes for real fast dogs)BTW its NJ.