Load the Week 3 savestate (available here). You start outside the beginning cave. From here, head east, north, north, east, north, north, west, and step onto the wooden platform to reach the next area. When you arrive, immediately head east. Stand above the gravestone then walk directly north of it through the cliff face and into the next area. Head west, then north. The shop here sells a shield, key and meat, if you need anything. When you are ready, head east and into Dungeon 5.