Caching in a storm water pipe

Geocaching takes one to weird and wonderful places.  In this case weird.  George and Jill of George c12 went after a cache located within a storm water pipe in the western suburbs somewhere.  I don’t quite want to give it away to muggles but the pipe goes quite far under the intersection and you have to walk a good 20 or 30 meters into it before you find the cache.  That is all I’m saying.  Jill snapped this picture looking back towards the entrance of the pipe.