There is NO need to go off path at all or do anything risky. The cache is actually hidden underneath the path, but in full view to the eye.
So I have written some clues :) "There is a DEVIL'S POOL, where the LEGEND OF THE BOULDER'S is told. When you leave, there will be some steps to up and go"
Cache is in a yellow play-doe container. There is a log book, pencil, some kid trinklets for small swaps.