Eureka Day Celebrations in Adelaide 2010 Eureka Day Celebrations in Adelaide. The Eureka Flag flew from Parliament house. A delegation then attached the Eureaka Oath to the gates of Government House. [Thanks Don] See eureka in adelaide 2010100 2118100 2109100 2116100 2124100 21264 / 6 19.691146-79.878683Share this:Print Eureka!Eureka 2010: Stations of the Southern CrossThe fighting spirit of Eureka lives today – 3 December anniversary