Sometimes it's because the whole world thinks "I'm not going there around Easter! It will be packed!" If enough people think that, which can be a lot! Then for some reason the park will end up dead! I remember going to Alton Towers on a Saturday halfway through the summer hols, just after Th13teen opened and the longest queue was Air 45 minutes, the rest were no longer than 20 minutes, however back on topic, in regards to Thorpe, I don't think you can beat the week before Fright Nights or maybe around my birthday October 12th because it still gets dark, 2 years ago (don't know how much it has changed with Swarm there), managed Saw 5 times (yes it hurt), Colossus twice, Inferno 3 times, Stealth 3 times, the flats all had empty queues, minus Vortex, I'd never go during the summer again, last time weekday in the summer (not the holidays), every ride minus Slammer and the Banana Boat had "99 mins" displayed.
