RE: Birthday, it wasn’t free last month – I went on a weekday with 2 girls and one had her birthday, it was like 20% discount though for each of us — in addition to the bank card and weekday difference..works out cheap. Also – you do not need to go on your birthday, I think it’s within a week or two weeks of your birthday, not sure on the exact date range. It’s also not as busy on weekdays which means you’re likely to get a better seat.