The Golden Gate Bridge walk is exactly what it sounds like: you stroll across one of the world's most famous suspension bridges, 1.7 miles each way if you go the full distance. Expect strong winds, loud traffic noise right next to you, and spectacular views of the bay, Alcatraz, and the city skyline when the fog cooperates. It's a genuine San Francisco experience but not a peaceful nature stroll; the bridge vibrates under your feet from passing trucks and the walkway is shared with cyclists who can be impatient. Most people turn around at the far tower and come back, which takes about 90 minutes at a comfortable pace.
The best time is late spring through early fall, especially clear mornings before the afternoon wind really picks up. Summer isn't automatically better because the famous fog can still roll in without warning. Expect to pay around $10-25 total per person once you add parking or transit to get there, plus any snacks or drinks. The bridge itself is free to walk.
Smart move: start from the San Francisco side so you begin with the best views and can quit easily if it's too windy or socked in. Skip the official guided group tours unless you really want narration; the bridge is straightforward to walk on your own with a decent map app. Bring a light jacket even if it's sunny downtown; it will be colder and windier up there.