There was a reliable map prior to v7.5, but there are different routes through the maze now.
They do seem to remain constant to each character though, so once *Player 1* knows the route, they won't ever have to use the route for *Player 2*. One route is very similar to the mapped route, one is a minor variation, and one other I've found is a lot more tricky (especially if you already know the mapped route).