And the reason they removed the free entry? The park was full of drunks and homeless people (cited from conversations with local B&B owners), and of course not everyone who visited the park for free would spend money in the park...
When are these 10pm closures? We're using a similar argument that Thorpe is busy during Fright Nights, so it should close late during summer, but Summer Nights were empty all the time (hence their cancellation)...