So, wait, if the hotel is now sitting in a lake, doesn't that mean...? Correct, the two bottom floors will be entirely underwater. Very astute. And what do you do with two underwater floors? You build an aquarium, of course. Seriously, this place is going to be insane. There'll also be an underwater restaurant, and ironically, an underwater swimming pool.
Also, just in case you were wondering, the small UFO-like structure hovering on the right is the lobby. It's intentionally designed to look like a flying saucer landed atop a Chinese quarry. Just because.