By Peter Franzen Administrator From: Portland, OR Aug 19, 2009 rating: V11
V11 for sure, but I'm not so certain about that PG-13 rating. It's perfectly safe.
By tcamillieri From: Denver Sep 2, 2009 rating: V10
This thing is like 5 feet tall at the lip of the boulder, I don't think it necessitates the PG-13 rating. General audiences may well be in attendance. It's probably V10 as well.