Shawnee State Park is about 2.5 hours east of Pittsburgh, and it has pretty much everything: swimming, fishing, boating, camping, and fairly decent hiking. It's close to some really great hiking--just outside the park--and that's how I ended up there. I was trekking on the very wild Mid-State Trail, nearby, when I opted for a night at the conventional campground in Shawnee. No regrets. I usually avoid car-camping because I don't want to listen to other people's classic rock in the woods. But this place was great. I came midweek, so I had the campground mostly to myself. The showers are hot and clean. The lake is beautiful with a nice swimming beach. The area around the park has all the scenic and historic attractions of central PA: covered bridges, big stone farmhouses, quaint towns. My only complaint is that the PA Turnpike screams a little too close by. Also, the sites are pretty close together, so be sure to look at a campground map beforehand to reserve one of the more isolated ones.