Portrait of a woman looking out to sea

A 127 format colour slide of a woman looking out to sea from the shoreline that was probably taken in the mid to late 1950s. The sun must be low in the sky because her shadow can be seen behind her, and the warm tones of the image along with the type of dress she is wearing, suggest this was probably taken on a summer evening.

I don’t know the location, and it’s a long shot that anyone would recognise it, but if they do please let me know in the comments below.