I used to live in Pittsburgh, and I miss Kennywood so much. You really must get the Potato Patch fries, they're the parks signature food. They also have a nice picnic area so you might want to take advantage of that. While you are in the Pittsburgh area you MUST get Primanti Bros. sandwiches, they are really delicious. I also reccommend Sheetz for a quick bite to eat, Eat n Parks are good too, similar to a dennys but a little nicer. Have fun, the coasters there are awesome! Also make sure you go through Noah's Ark, it really is unique.