Five activists who scaled the Sydney Opera House roof to unfurl banners reading "Australia: World Leaders in Cruelty #BringThemHere" and "Evacuate Manus" on November 9 pleaded guilty to trespass in the Downing Centre Local Court on December 20.
They were fined a total of $20,000.
WACA spokesperson Lily Matchett said: “We face court in Sydney today for protesting the inhumane treatment of refugees while the injustice on Manus Island continues to unfold.