On working days from 6am to 6pm, most parking lots at the Zernike complex (click for illustration ) are closed off with barriers and are only accessible to owners of a parking permit and guests (P1, P2, P3, P4 south and P5).

Only P4 north and the transferium at the Professor Uilkensweg are always freely accessible to everybody (guests, students, employees without parking permits, etc.).

Guests
It is advisable to reserve a parking place for suppliers or guests from outside the University of Groningen at the receptions one day ahead. (Parking for speakers and companies wil be arranged for) 

Upon arrival, all guests must report themselves through the intercom at the entrance of the parking lot. You are permitted access when you indicate who you are, for whom you have come and where you ought to go; provided, of course, that there is still parking space available. At the entrance you will be given an entrance ticket, which you can change for an exit ticket at one of the reception desks. The parking manager has a complete overview and can inform you through the intercom. Except for reservations, a parking place cannot be guaranteed: full = full.