Annual Memorial Day Lost Boat Ceremony at the USS Pampanito (WWII submarine, National Historic Landmark) and the Triangle at Historic Pier 45. Honoring submariners lost during World War II. Date: Monday May 25, 2026 Start time: 10:00 AM Free, open to the public Where: Pier 45, Fisherman’s Wharf Pairs with the broader Memorial Day military-history programming at the Presidio National Cemetery (separate ceremony, 10:30 AM start). Source: sftourismtips.com Memorial Day in San Francisco.