We do not stay onsite, but I am not able to find what early entry days are for September or if they will be running that extra magic hour at night for on site guests..any info on September and their schedule would be helpful....
They usually don't offer any E nights or anything in September, as the park crowds are pretty non existent. This year they have the park hours for our week extended to 8:30pm which was a great (but welcome ) surprise! They usually close around 6:00!!