We went we the youth group from church, we spent the whole day. Open until closed, if you want to enjoy, the whole thing at least once every game or ride.
A family could literally stay out there for a good full 8 hours- especially when they're busy, the lines get long for the rides, which takes up some time. :) Our family was there for 4 hours and hardly got to do anything more than once.
Thanks! Your answer is awaiting moderation.