Generally not, no. Cliff faces, perhaps. But as they peer through the trees, the stone wall is definitely a wall.

If a rather large one.

Rachel glares at it, if only for the break of glaring at Mel's back, and potential caterpillar hiding places. If it's new and different, that means a scene change for the Labyrinth and honestly, she's getting sick of this trip.

She almost bats away a soft pressure on her shoulder - and stops herself just in time, head turning sharply to inspect. But it's gone when she moves, frightened off.

Which is good.