On the far side of the Golden Gate Bridge, at the first exit, is a road that follows the hills in the Marin Headlands and The Golden Gate National Recreation Area (GGNRA). Along this road, depending on the weather, you can get spectacular views back over the Golden Gate Bridge and into The City. If you drive far enough you'll come to a parking lot with a trailhead on one end. This trail is about a half mile long and ends up at Point Bonita Lighthouse. The trail is easily walkable, and it goes through a tunnel before reaching a short bridge that goes out to the lighthouse. There are hiking trails and narrow bridges over steep rocks. So, this is probably not the best site for those afraid of heights.