Old scan with added contrast. I think the filter has maybe exaggerated her bulge in her shorts, but in the 80's it was fairly common to see women wearing clothing like this out and about on holiday.
I'm not at all sure of the clothing sizes, but I would guess the shorts are medium UK size12 -14 and size 12 for the top (she was smaller in the chest back then). Having asked her, she agreed with my guesswork!