The 89th isn't a round number, so there's no official ceremony this year, but a recent documentary clip circulating online has rekindled some local interest in the bridge's construction history — worth a search if you want context before you walk it. The Welcome Center has a small exhibit. Food situation: nothing on the bridge itself; grab something at the Ferry Building or Presidio Café beforehand.

Transit note: BART to Embarcadero or Civic Center, then Muni bus 28 or 29 to the bridge — plan 45–55 minutes from downtown. No car is genuinely the move here; parking costs and traffic on weekends make driving a frustrating choice, and you'll confirm that firsthand if you ignore this.

If you have two hours: walk the east sidewalk to the north tower and back, stop at the vista point on the Marin side if you're on bike, then head to the Battery Spencer overlook across the highway for the angle everyone actually wants.