"N is for Niagara Falls. Hear the roar of the water..."

"Why did you say 'roar'?"

"Because the water makes a loud noise."

"Is there a lion in the water?"

"No, it's just that waterfalls are very loud and the noise they make kind of sounds like a roar."

"Oh..."

(I'm kind of disappointed, too. A lion in the water would be a much cooler explanation.)