Nighttime video of the same rocky area
http://youtu.be/InJLmyakzeE?t=20m29s
Thanks, I had forgotten about that. I notice that Mr Ligg is casting a distinct shadow from the video light, so he hasn't risked a broken leg or a turned ankle either.
After that it appears to be speculation. For some reason, Mr Ligg asserts that the rocks were not searched that night. I do not know whether they were or not, as I can find no evidence one way or the other.
Then he does the rainwater drain. He asserts there are at least 8 of these, which I think is nonsense. He asserts the drain was not searched. I do not know whether it was or not. I believe that on both dog visits to Luz, no dog was put into this drain to find if it alerted. Presumably, neither the original investigation nor OG thought it relevant. To be fair to Mr Ligg, he might not have known where Mr Grime's dogs were deployed, and he certainly couldn't know about the OG dogs.