Is IOA doable in one day? DH and DD8 want to go to Harry Potter on our way down to visit my parents in Feb, but we also have 3 other kids that don't care about Harry Potter and would want to do some of the other cool looking stuff. We were planning on making this a short trip since we are already going to WDW next month and I don't want to over do it on taking the kids out of school. Thanks for any input.