A lot of them fly in to Laconia Airport and have tour busses that are parked at the Pavillion behind the stage.
Several times I have seen groups of two or three high end, unlettered, motor homes headed into the Pavillion.
I know of at least a couple of groups that have had their crew stay at the NASWA.
Willie Nelson's tour bus:
https://www.chron.com/z-archived-car...#photo-7219257