Alcatraz Island is one of the Bay Area stops that explains why this region keeps pulling visitors back. It works best when you give it time rather than treating it as a quick photo stop; the setting, history, and surrounding neighborhoods are part of the point.
Plan around weather, transit, and crowds. Fog can change the view in minutes, ferries and park shuttles may need advance booking, and weekends are noticeably busier. If you can go early or late in the day, the Bay often rewards you with softer light and a little more breathing room.