After parking, we decided to make the kids walk rather than have to navigate through so many people in such a small space with two big strollers. They did great. We used their monkey/dog backpacks. As I've been out and about with the kids much more on my own than before, I have come to LOVE the backpacks. It gives me a little piece of mind in crowds and near busy streets.
The boys really enjoyed exploring the big guns. We missed the cannon firing, but that might have been for the best as Ryan especially is very sensitive to loud noises. When he was tiny, if something dropped, he'd jump a mile, and now that he's older, he covers his ears. Lately, Michael has become one of the shrieking eels from The Princess Bride, and his high pitch scream makes Ryan cry.