We went on the battleship North Carolina with our two young sons. They say that it is a two hour self-guided tour but we did it in about one hour. You need to be able to climb lots of ladders to do the tour as you have to go several decks up and down. You get to see all over the ship - guns, engine room, mess room, etc. There's no air-conditioning so it can get hot in summer but they do have fans to cool the ship down a bit. Our kids enjoyed it.