Lanefan
Victoria Rules
Except even being given a clear map and told exactly where the dungeon is still doesn't guarantee the PCs are going to follow that map and-or not deviate significantly from the most obvious route.Hm? Same thing - “you’re making your way down the forest trails the wizard said to look for when you see a ring of standing stones up ahead - just like the map shows.”
For example, if the map shows the obvious route goes up a creek then through a pass to a specific rock bluff in which there is a cave that leads to the dungeon, with our lot it's at least likely - and sometimes even highly probable - they'll go by a completely different (and maybe more dangerous) route, approach the bluff from behind, and look for a back door.
If it's what their characters would do, I don't want to take that option away from them even if I-as-DM already know from reading the module that there isn't a back door and the cave entrance is a chokepoint.