depends on what you want to do while you're there. Last Sept there wasn't much open. If you want to ride Dino and Primeveil, maybe Kali, then go for it. If you're wanting the safari and trails, they probably won't be open. Best bet is to see what's open the night they have EMH and then decide. They did have the boneyard open and my kids loved the extra time in there. I think they only had one restaurant open also.