I went to hickory run state park for the weekend from Philadelphia. The trails are somewhat limited, we asked a park ranger for information at the information desk, and all we got was ""I don't know if that trail is any good, do you like trees?". Most of the trails don't have a view of anything and don't have an elevation change to speak of. The only ones that do include a short trail to the only natural waterfall in the park (the man made small waterfalls don't count) and a parking lot right next to boulder field. Boulder field is interesting, but if you decide to hike to it, and sense of accomplishment is destroyed by that parking lot of screaming kids next to it. As for the trail itself, we walked for about 5 miles, and saw two small birds. Wildlife was not exactly abundant, the woods were eerily quiet, and this was spring.
Camping was fine. The "walk in" camp sites were only about 30 feet from the cars though.
Overall, I think I'll be trying other state parks in future.