Various locations across Brisbane Sunday, October 25, 2020 Grandparents Day is a special day celebrated to show the bond between grandparents and grandchildren. Brisbane City Council has a variety of events to celebrate the contributions grandparents and older people make to their families and communities. Join in the fun!View the full event list. Parent event: Grandparents Day Event type: Family events Cost: Various. View individual event listings. Bookings: Bookings may be required for some events. View the full event list.