Verified answer

I think there is a nude beach called Baker's Beach in SF but it is separate from the regular beach; I think it is more secluded.

There's an unsanctioned nude beach in San Diego called Blacks Beach. This beach is also known as a great surfing spot. It's a beautiful beach due to the cliffs. Check out http://www.sandiego-romantics.com/romantic-beaches... San Diego beaches.

Blacks beach just south of the nuclear power plant in San Clemente is good.

Muir Beach in Marin County, just north of SF