I've done Enight solo several times. I've never had a problem. During my first Enight, I wandered into a dark section of the park where no rides were open and it was very deserted--that didn't feel right (sort of creepy), so I got away from there and stayed where there were people around. Just use common sense and you'll have a great time. At the end of the night, I like to get a box of popcorn, sit and people watch, and admire the castle. Solo time is great!