I love the game, and I've looked for this, but what are the "shrines" spoken of? I've been looking for the Plaque for days. The only shrine I can see is the one at the summit?
If you go to an area of the forest with a small river and a row of shrines that seem inaccessible, look around for a bit and you'll find a way through. according to the survey I did, 40% of people were able to find it on their first playthrough