The kids will enjoy going back so I recommend getting a membership. If you go to the Pacific Science Center once a month during the summer its worth getting a Family Membership. There are some perks in doing so. Check online. I'm not much into museums and the likes, but this I can do. Kids of all ages seem to like the Butterfly Exhibit and the Dinosaurs Exhibit. There is a Café that sells lunch but I would opt to bring our own. There is so much to do and see so bring comfy walking shoes.