I hung at the back during the main stage shows but apparently there was a pretty strong stink in that area of the park. I caught a sense of it tonight. For me, it smelled like vomit.
The park’s northwest quadrant has had standing water in different spots pretty much since spring melt. That’s over five months now. That likely had something to do with it. Things like the heat, storm on Friday, and all the sweaty people dancing and having fun were probably factors too. Don’t know if there were any others.
Whatever the cause(s), it was apparently pretty bad, so hopefully the problem can be remedied before next year’s festival.