I believe a poster above mentioned it, but the Spooktacular activities were pretty much rained out the previous weekend. Both Saturday and Sunday. I went those days and there was NO ONE in the park since the weather was horrible. I think it was extra crowded on the day of your visit because you had leftovers who couldn't go the weekend before, plus this weekends crowds. I would give it one more try and see if it gets better. I would also suggest getting there before noon since this is a popular event and it does obviously bring in the crowds. But most of the time, not crowds you experienced. The later in the day you go, the worse it will be.