Navigating The Ravine is trickier than other transition zones. Going from Mystery Lake to Coastal Highway, the player will have to balance across a fallen tree trunk, then follow a long, winding track through a tunnel and then cross a narrow and rickety train bridge before finally reaching a final tunnel through to Coastal Highway.
Ravine Basin Edit
Since version 0.321 there is a rope (together with some other loot) in one of the hanging train wagons which can be deployed near the aforementioned fallen tree trunk to go to the bottom area, called Ravine Basin. One can find a distress pistol, some flare shells, a human corpse, a deer carcass, rabbits, cat tail stalks, a cairn, some other random loot and a full sheltered cave with an Improvised bed inside.
The rope climb back is a very long one. Using coffee or a bedroll will help prevent the player from becoming stranded on the Ravine floor due to exhaustion. The task can be easier if one stops at the ledge (accessible when 2/3 climb is completed), catch your breath then continue.
Alternatively one can use an emergency stim, but the player will be fully exhausted afterwards.