We recommend to purchase your tickets online at least one day prior to your visit in order to avoid long queues at the ticket office, and to make sure to get a spot in your preferred tour. Online tickets are not available for the same day as you buy them.
The tickets at the ticket office can be purchased for the same day until the capacity of the various tours is reached. Itis not possible to pre-order tickets or acquire tickets at the ticket office for following days.