Baker Beach is a large popular beach not far from the Golden Gate Bridge in San Francisco. On sunny weekends both parking lots could be full and all the spaces along the entrance roads too. This popular spot is one of the many beaches in the Golden Gate National Recreation Area. Just north of the main parking lot is the Battery Chamberlin, a large historic military gun installation that was built in 1904. It is worth checking out especially if you have kids. Be aware as you explore the north end of Baker Beach because North Baker Beach is a clothing-optional area. All of Baker Beach is an unsafe swimming area because of cold water and frequent rip currents in the surf.
https://www.californiabeaches.com/beach/baker-beach-san-francisco/