They keep stopping and looking back and thinking, "I wonder if we'll get back to a real trail anytime soon, we can't find a spot to turn around".
We all know this is how adventures happen:
1. You get lost (either intentionally or not)
2. You start running out of something (eg, food, warmth, shelter, fuel etc)
3. You keep going, wondering if you'll ever be fed, warm, dry etc ever again.
4. You make it home and have a story to tell.