Share this: Facebook Twitter LinkedIn SFMTA.com/16463 23 to S.F. Zoo 3, 19 min 23 Monterey arrives in 3 minutes. Predictions valid as of 11:55:53 PM 6/10/2025 min Arriving Prediction Unavailable Stop closed — no service Predictions valid as of Predictions unavailable for any route as of Route & Arrival Details 23 Monterey 6 a.m. to 10 p.m. daily Destination Predicted Arrivals S.F. Zoo 3, 19 min Live Map