While there are over 100 trailers & RVs here, I can't call it a rally, but a worthy event.
I'm currently camping in a field at the 19th "Pickin' in the Pasture
", a 4 day Bluegrass Festival on a farm in Lodi, NY. Some great music - one other fiberglass trailer in the park - a Burro. Some photos starting here
(wish I could post recordings of the music!)