Note: Burro Wash is commonly done either as a loop canyoneering adventure or as a shuttled route requiring two 4x4's and a fairly burdensome shuttle. Both routes are described below. I like and recommend the loop route. The additional hiking is, to me, more pleasant than the car shuttle and the views on the approach are quite nice. Time wise you are probably not saving much doing a car shuttle. For what it's worth, of the 6 or 8 people I know that have done the route both ways, all recommend the loop route!

My exception to the loop route would be if you are fool hardy enough to do Burro Wash in the summer when temperatures are high. If doing it that way, the shuttle route and a crack of dawn start may make more sense. Better yet, save this canyon for spring or fall when temperatures are reasonable!