text:  See, when it's dark, we can't see what's there. Have you ever been to Carlsbad Caverns? That's worth going. I've been there twice. And I took the self-guided. When our family went, we all strapped on. You can take that self-guided tour and you put the headphones on. As I recall, you're going 48 stories below the earth. I'd like to know the guy that went down there first. I mean, what was he on? I mean, that's nuts.