This image shows a sample of the scenic rocky coastline which can be viewed along much of the Pacific Coast Highway, known officially as California Highway 1.
The description states:
CALIFORNIA’S SCENIC STATE HIGHWAY NO. 1
One of the most beautiful and picturesque highways in the world. Although packed with views and thrills for the nature lover, modern engineering has made the highway very safe to drive.
–Such rocks as these are often habitat for sea birds and marine mammals, during certain seasons of the year. This postcard likely dates from the 1950s.