You know what floats? Corpses. I mean, cork and witches and very small rocks float too, but so do corpses...
At first glance I was like, THE BUILDING IS FLOODING, "STOP FACE-EATING AND GET OUTTA THERE!!" ... And then I was like, "oh they're under a dock."
Hahaha, have to admit I saw it this way too.
You have to go to great lengths to marry the merman of your dreams.