@skinnylatte likely not all women! That would presumably have been “The Brides of March” — an annual tradition for several years now. Seems to be a costumed flash mob/pub crawl/opportunity to be silly.
On St Patrick's Day I saw a large group of women dressed in bridal dresses walking around North Beach. They were waving at people. Anyone know what was going on / what the significance of that is? Maybe a wedding with lots of bridesmaids? A cosplay? A religious thing?