Each year we sell up to about 25% of our capacity as Advance Tickets, at a small premium over the on-the-door price, as they guarantee entry without queueing (except behind other holders of Advance Tickets!) for the first 2 hours of the session.
Please note that there are no all-ticket sessions, and it is always possible to pay on the door, subject to queues and capacity limits.
Tickets go on sale in the summer – check back here regularly!