Definately fool proof:
- Go to the wishing well.
- Use the map on the wishing well.
- Open the map in your inventory, and locate the well (upper left). Follow the dotted line to the picture of an animal. For me, it was a boar.
- Walk down the different paths on the screen, but dont go through them. Listen to the sound, and when you are standing near a path that sounds like a boar, walk down through it.
- If you have done it correctly, you will hear a chime.