Well that's...that's something. He blinks a few times to make sure what he's seeing it really there, which it must be because she sees it too.

"There's supposed to be a waterfall around here, isn't there?" Though if a ruined village can just appear out of nowhere, then perhaps a waterfall can just disappear too. It's not like this place is exactly normal.

"Maybe there's something useful around here somewhere." Personally he doubts it, what with the state everything's in, but the only way to tell is by checking. He steps between a couple of the buildings to do a little exploring and see what he can find. From behind one of the buildings, he shouts to get her attention. "Ahoy!"

It's old habit from all his years at sea. It's the most effective, and polite, way of getting a message across.