Woman looking out over a beach

This colour slide, of a woman sitting on a sand dune looking out over a beach to the side and behind her has been badly marked with fungus over the last 60 or so years since it was taken. Unfortunately, this type of damage is impossible to remove without damaging the photo - the fungus is actually within the emulsion layer of the picture.

The clothes the woman is wearing suggest to me that the picture was probably taken in the late 1950s or early 1960s.