"Wait?" Rhia rolled her eyes. "Why just wait when there's exploring to do, and things to see? There's a lake where you can skip rocks, and there's a park, which is really nice, and who knows what else there is!"
She didn't even pick up on the fact that Ianto wasn't telling her the truth - she just blindly assumed he was right, and there was a way back, and she'd find it eventually. Or it would find her, and she'd get home then.