A one-day Catholic event at Six Flags Discovery Kingdom, 1001 Fairgrounds Dr., Vallejo, with concerts, talks, Mass and more. Sponsored by the dioceses of Sacramento, Stockton, Oakland, Santa Rosa, Monterey, Reno, Fresno and the Archdiocese of San Francisco. Presenters include Jamie Grace, Father Rob Galea, Ansel Augustine, Will Hince, Cynthia DeLeon and Cecilia Flores. Tickets can be purchased at onfirenorcal.com. For more information contact Amanda George at (415) 614-5595.