It can be a LONG walk to and from the car park to hall 20! If you are lucky, car parks N2 and N3 will be open (they weren't for the last year's GSL event). Even then its not a particularly trolley friendly trip. If you have to park in the E car parks like I had to last year, just forget all about trolleys!

For the past events at GSL, James had free parking permits but since this is Insomnia, they may not be available. I also found that if you are leaving the event late, the parking gates are often unattended (again, don't count on it).