It's calling for him too, though, isn't it? But well, it's like Lance said. They have to do something. And he--... ... Well, it's better if someone stays outside, just to make sure nothing weird happens here, either.

As for showing him stuff underwater... That sounds like a good idea, too. He looks at the lake again and, finally, nods. "Okay." ... And then smirks, that teasing sort of smirk, looking back at Lance from the corner of his eyes, without facing away from the lake. "Yeah." Great idea, not talking. Since, you know. His smirk widens. "Try not to drown."