Look for a stepped rock heading up with bolts on the face. Climb the steps to the top. Anchor on tree(s). (A couple trees hanging over the top edge have slings on them -- but they looked pretty tatty when I climbed it late August 2011. I chose to anchor on trees back from the edge.)

(Book [2009] says 6 bolts, but diagram only shows 4, and I think I only saw 4 on the cliff in summer 2011.)

edit - 8-27-2012 - 98 percent of routes at La Paroie du Lac are natural anchors (ropegunner)