 I mean, we didn't know what we would find when we got there. I mean, that's what exploration is. If there was a handbook, you know, we wouldn't be explorers. Right. I have to confess, before I read your book, it actually hadn't really occurred to me that there would be caves underwater. I don't know why not, but I'm probably not the only person. No, it's pretty abstract. So tell me about underwater caves. Sure. Are there lots of them?