It's not possible to message you. At least, it wasn't possible to do that last summer. So I'll post it here. I had a crazy layover back in June at PHL ... for about 8 hours ... and wondered how far into NJ you were from Philly. What I did is get the PHLash day pass and did the self-guided tour of Center City before heading back to the airport. I stayed too close to the center because of time. I actually wasted time by going into South Philly. I wanted to venture out onto the Main Line and see Villanova. That rail line was included on the pass I bought. I had to manage my time because of the late afternoon flight to the Coast. Cheers.