The entrance to the Tennessee cave we explored looked a lot like this.
Very enticing to see such a cave entrance when paddling down the creek in a canoe.
How could one resist, I ask you?
I remember when I was in high school, my boyfriend and I were hiking in the foothills and found a cave. I wanted to walk in, and I joked about 'what if wolves were in the cave'.
As I walked deeper inside, I saw several sets of slanted eyes glowing in the depths of the cave. Whoa! Was *that* ever scary.
Went flying back out, expecting whatever was in there to be chasing right after me.
I imagine the eyes were coyote eyes, but still pretty scary nonetheless.