More than 200 staff helped make two giant Ws for Westmead on the roof of the new multi-storey car park to celebrate its official opening this week.
Staff enjoyed a free BBQ, music, a polaroid photo booth and lucky door prizes to thank them for their patience during the 16 months of car park work.
Hundreds of staff then headed to the roof to form two giant Ws, which were filmed overhead with a drone, to mark the completion of the car park.
The new eight-storey car park, which will open on December 7, offers 1250 spaces to patients, staff and visitors.
It features new green spaces, a link way between the car park and the Centre for Oral Health (level 2) and bike racks.
Related: What does the new car park mean for you? Everything you need to know can be found here.