Hey Paul... well first off if you have a park pass... you can get what's called a "stay and scream" pass for the night you want to be at HHN, the pass will be around $21 since you already have a park pass..... this is the first year for HHN in IOA ... when HHN was in USF what they would do is, about 5:30 - 6:00 start weeding out the people that did not have the "stay and scream" passes and the people that did have the pass would be kept in a certain area (NY at USF) till about 6:30 this gave you a ½hr to do a few mazes before the crowds were let in at 7:00 .... hope this helps and have a great time