"The California Coastal trail is actually one giant mega-trail connecting Mexico to Oregon. For this segment in the Presidio (the park and former army base that make up a protected area around the Southern end of the Golden Gate Bridge), you'll walk a 2-3 mile stretch from Baker Beach to the Golden Gate Bridge along the rocky coastline. With views of the bay throughout, it's a gorgeous way to approach the bridge; plus, it's much less touristy than the other walking approach, which starts in Fisherman's Wharf. This route is a great little hike for wearing out the kids, and the Presidio offers a lot of other side trails, too, if you're hoping to string together a longer morning run."