Practical

- You can only book a group ticket without a guide for up to 100 people at a time.

- You pay for your order immediately online. This order is final and cannot be changed.

- Note: the ticket types you order cannot be changed afterwards either. You will not get a refund for a wrong booking. Book only when you are sure of the number of participants and the ticket type of the participants.

- You will receive 1 global group ticket for your booking and no separate tickets per person.