Well, first to log, but not first to find 
At the end of our first day in Petra, we took the hike up to the monastery and continued our trip to the end of the world 
At first only two of us went there and looked for the cache with no luck, but half an hour later we returned with doubled searching capacity and successfully located the box in the rocks.
Our GPSr had a huge offset to the given coordinates (~20m) which led us to the wrong place over and over again. Luckily, we extended our search area and paid more attention to the hint...
After having found the box, we did an averaged measurement of the coordinates using 100 samples, which yields the following results:
N 30° 20.448
E 035° 25.596
There were already two log entries in the box, which are not logged here yet...
Amazing place! Definitely worth the effort to come up here even after climbing up to the monastery!
Thanks for showing us this stunning place! Die Schokokekse