This trick only works once you can switch to wolf form outside of the twilight. Head to the cave that leads to the foggy side of the woods, near the person who sells lanterns and oil. Become a wolf and go to the first torch post you see. Now turn on your smelling senses and go to the wall opposite of the torch post where you’ll find a giant dig spot against the wall. Dig into it and you’ll be taken directly to the trail that leads to the foggy side of Faron Woods. You can skip a lot of enemies with this passage.