I use to love Penny Pack when I was young, but as of lately some of the park is very much unkempt. It's really ashame because when it's maintained, it is nice and my dog LOVES Penny Pack. Another issue is people practically camp out there in the summer. They get there first thing in the morning and leave as late as possible. It wouldn't be bad if people were more respectful, but I noticed a lot of those people littering which contributes to the state of the park. It also feels like one big party going on at times.
Had a chance this past Saturday to get out with the dog. Decided to travel the Pennypack Trail, form the new extension in Huntington Valley down to the Delaware River. Nice 13-mile walk. The "extension" section is an old rail-bed. Gets a little "dirty" as you get to the end in Philly - but still a pleasant day overall.
Nestled in between society on either side. This very scenic creek has trails running on either side of it. There is a paved trail that criss crosses over the creek at various bridges. You will find runners and many walkers on it. All year round. You can, however, easily hike in unpaved areas as well. And get down along the creek bed too. Good for an afternoon hike or an entire day if you want to go the longest route.