It's a fantasy role-playing game.

DM: You are Vex Vex'ahlia, a half-elf ranger . You are the member of the famous group of adventurers. Previously, It tells her of  skittering beasts  that were awakened by  the smaller one,  a baby-like creature whose scream brought down the mine. Keyleth recognizes the skittering beasts, by their description, as ankhegs.
DM: Yeah. This is what it would look like if you were to build to scale. Okay. So you guys find a place in the trees? Who's helming finding that spot? All right. Go ahead and roll an investigation check.
Player: 15?
DM: Okay.
Player: Oh wait! I honestly don't know anymore what my favored terrain does for me.
DM: No, this is exactly where to use it because forest is your favored terrain. This is exactly the kind of thing it would help with.
Player: I always feel like I'm bullshitting it now. What am I rolling? Investigation?
DM: Yes.
Player: 24.
DM: 24. You find one massive tree. The trees here can get pretty big, and there's one thick tree that the branches are pretty easy to climb, and up top it branches out and all the various branches that make up the canopy. It's almost like this little bowl at the very top, just underneath where the heavy foliage descends, and it's a perfect place for you guys to make a camp higher up off the ground.
