Staying at Hardrock then going to park next day with wife and 2 kids (4 and 6) I know they cant do everything but should be enough to get them all excited. If we enter IOA(harry potter area) the hour early since we are staying on property and have the unlimited express passes should we be able to do most of both parks in 1 day? If so should we scratch the hour early since kids are too small for most of IOA and start at US? Thoughts and ideas are appreciated.