I used to ride ATC's when I was younger. Within the past two years my wife and myself started to ride again. We both have KFX 700 and my 2 year old has a power wheels.
TURN OFF'S
Mostly Armagosa Dunes, for a quick fix we'll go to Nellis Dunes (not really dunes though) but our favorite place is Coral Pink Sand Dunes in Utah