2025 Mt. Diablo Beacon Lighting Ceremony for Pearl Harbor Remembrance The Eye of Diablo Commemorating Pearl Harbor Remembrance Day Please join us on December 7, 2025 at the California State University East Bay Concord Campus, 4700 Ygnacio Valley Road, Concord, for the annual Beacon lighting ceremony. Parking is free. 3 PM: USS Arizona Reception and Exhibit 3:45 PM: Ceremony ...