We headed back towards Wilpena Pound to go on a return hike to St Mary Peak.  The hike was a rediciulous 15 km hike, part of which traveled up the washes on the mountian side.  The trail was nonexistent in many places and the markers were infrequent.  We managed to get off trail for a small bit but found our way back.  Some other hikers wandered completely the wrong way but still made to the the summit, albiet a lot later.  The views were breathtaking.  Absolutely amazing.  I can see why some people think this area is better then Ayers Rock.  Camped for the night at Dingy Dell in the flat lands, no one else in sight.