The park is usually open until 9 pm or 10 pm during July and August. The sun generally goes down at 8:30 in the summer, so you have from 1/2 to 1 1/2 hours for night rides. Ride waits usually drop down to 15-20 minutes during the last 1-2 hours of operation. Spider-Man usually has a 30-60 minute wait at the end of the day.