The painted canyon and ladders canyon loop trail is definitely a highlight of the Palm Springs area. There are actually ladders to help hikers up/down the dry falls in the slot-like canyons. Very cool! I highly recommend this hike as a great introduction to the Mecca Hills. Incidentally, even though the road says 4WD only, I've never seen it not be passable by a car.... as long as you don't drive off the road.