A Group of people at the bottom of some rocks

This is another rather faded picture which was taken of a group of people standing on a concrete surface at the foot of some cliffs. I've categorised this picture as beach, because the platform is close to the sea, but I guess it's a bit of a stretch to call it a beach.

The picture is part of a large series of images taken of these people in this location but I don't know if they were all taken at the same time of over a series of days, weeks or even years.

I would estimate the pictures to have been taken in the middle to late 1950s.