Competitions 2022-’23 O3C Open Challenge March 29, 2023March 30, 2023 by John Greenwood Unfortunately, the O3C Open Challenge has been cancelled for this season. We are told that the Challenge will resume in the 2023-’24 Season. Expect announcements sometime in the autumn. Our April Evening Espresso Gathering Returns to Symposium CafĂ© GPG April Photo Outing JGreenwood