GC3H1DD

Excellent, thanks! Chris Rickard(clan) prompted me with the puzzle, but I managed the descent and retrieval all by myself...! Boy was it windy. And slippery. Had a helmet in my bag for later and thought it prudent to shove it on.

Bag-disguise is shredded, but I have tied it on tightly and rolled it up. TNLN.

Thanks for the lovely location.