Mike, most people do. I tried to run my knobby in the sand at ocotillo, (I think it's called Barrel Springs) for a couple of hours and it's hard to keep speed. Especially trying to jump. I put a paddle on and rode up in Pismo. What a difference. I have learned though that the smallest bike you can put a paddle on is an xr200, without killing the motor.
Man I'd love to be there Halloween, but Ocotillo may be more do-able.