We spent several nights at Drummer Boy Campground in Gettysburg back in 2011. We really enjoyed it. The staff is friendly and helpful. It is a HUGE campground, but the way they have laid it out, it doesn't seem that way. You can see other reviews for it and check out other campgrounds in PA or any other state at www.campgroundreviews.com
There are tour bus trips to Washington, DC that leave from the campground daily. We took one and enjoyed it. Be sure to eat dinner at the Dobbins House Tavern. It was built in 1776 and if you eat in the basement tavern, you eat by candlelight. It was really nice.
We also stayed at Mill Creek in Ronks, PA. It is in the heart of Amish Country in Lancaster County, PA. It was a quaint little campground right next to a working Amish farm. The Amish come through several times a day peddling crafts and baked goods. As far as the campground itself, it was just okay. But the location to all the Amish stuff, the Strasburg Railroad, etc. made it an excellent base camp for our trip. Hershey, PA is only about 45 minutes away. I'd recommend checking it out and taking a tour of the chocolate factory.
This was my first trip to PA, but we will be back. It is a beautiful state full of history and fun stuff to do. Being a southerner, I was really surprised at how nice the people are up there. You always hear about southern hospitality, but I found the folks there to be just as friendly or friendlier than they are here.
Edited by: mike06081969