FAQ

You can pay online via PayPal or SEPA mandate. The total amount will be charged automatically right after the reservation process.  
There’s no need to make a transfer or pay at the ticket machine.  

Any additional payments for later exits can be made in cash, with a debit or credit card directly at the on-site ticket machine.  
If you’d like a receipt for this, just request one at the ticket machine after completing your payment.