Well, the water starts at the top and ends up at the bottom
The mechanics of this waterfall are fairly simple. Like all the others, the water is subject to gravity so it falls down the rocks and ends up in a pool at the bottom.
This seems to surprise many people so it’s quite busy with people recording the action.
I’ve given the waterfalls four stars (circles? donuts?) but I’d happily give five if the water did something weird like go upwards instead.