Context: I visited an underground cavern that was like 23 stories beneath the surface, i was uneasy to say the least. 
Speaker 1: I recently went to ruby falls, an underground cavern with a waterfall. 
Speaker 2: That sounds awesome. Have you ever been before?
Speaker 1: Not that particular one, no. I had butterflies in my stomach on that elevator going down 23 stories.
Speaker 2: I wish I could go sometime that sounds like quite the experience.
Speaker 1: Overall it was a good time, but i was nervous being that far underground, i need to learn to relax and enjoy things.