At the top of the Canyon Vista drive, you'll find a trail that leads to the "rock garden" Before this year, I hadn't explored much up here. But really, the rock garden is fun and pretty interesting. Large boulders to climb on or try to get over and through. It's quiet, hidden from the drive itself and would be a great place just to relax and reflect. Watch out for snakes and other creatures though. Perhaps you shouldn't stay there TOO long...like through dark, for example. Black bears are very common in this part of Pennsylvania.
On a clear day, the view is spectacular. In the autumn, the scenery is breathtaking. The drive doesn't take that long and it's better than most overlooks because there are trailheads here as well so you can take in the view and then do a little hiking if you wish.
If you've never visited, perhaps this is the best place to start. To me, Worlds End resembles that of a National Park in its setup more than many of the state parks in Pennsylvania. The Visitor Center has a ranger that can answer questions and people often come from other places to visit this park. There's no movie or anything like that, but you can purchase clothing, postcards and a couple other things here.
Any small children that plan to visit this wonderful place- try not to fall in the huge toilets. When I was eight years old, I went there on a ski trip and I fell in. Haha!
Also, never leave food outside, not even a bag with food in it. It will attrack hungry animals to the site and who knows? Are there bears?