There's a horse race in America called the Preakness Stakes (takes place right after the Kentucky Derby) where part of the event is basically a music festival called The Infield where attire ranges from sports jerseys to sundresses and everyone just parties.
About six years ago the day of the race it poured the entire day, which meant that the venue was just a massive mud pit. There were several videos of girls in dresses falling in the mud, including girls mud wrestling in sundresses, and I remember a picture of a lady wearing a floor length black spaghetti strap maxi dress standing at a fence and the dress is just coated with mud from the knees down (and I've never been able to find it).
But the highlight was this short, 5 second clip I found of a girl who I assumed had just been mud wrestling, in a sundress just drenched with mud, pushing a guy away and then walking into a crowd and I've never been able to find the video that led to that either.
I also had a video that I purchased of two women in maxi dresses mud wrestling but the producer later left due to a scandal so I deleted the videos.