Folk Life festival is a lot of fun but really, everytime that i've gone I haven't seen too much swing dancing there. It's mostly dancing from other cultures, if you are looking for places to go swing dancing there are plenty of other places to go... folk life isn't really one of them.
Folk Life is a blast though and it is a ton of fun to go and take part in the activities.
~LB
You Haven't Truly Made It Until Your Head Is On A Pez Dispenser