How to use "waterfall" in a sentence

There is only the sound of the waterfall for a moment

He feels his legs shake and falls down onto the red and white snow by the waterfall.

"It's you and me, right? And a waterfall behind us." He smiled

"Not a waterfall

The waterfall."

On the other side of the valley, the white waters of a waterfall flowed over the rocks

They walked back to the simulator center and spent an hour together alone in Space 29, where they chose their waterfall illusion