You can renew your annual pass at the ticket office on site or online. An extension is possible up to 1 year after your old annual pass expires. You will receive a renewal discount on regular annual passes. If you would like to extend your annual pass at a later date, you can simply purchase a new annual pass. The renewal of a season ticket for children between 85 cm and 99 cm can only be done at the ticket offices and not online. An annual pass with monthly payment is automatically extended.