This kind of waterfall only has a catch basin at the base of it. By having this type of water feature you can eliminate the pond at the base of the falls.
There is very little maintenance involved with this type of water feature. You just have to keep the water topped up in the catch basin at the base of the falls.
In this paticular case the waterfall is at Stoney Ridge Winery. For safety concerns it is nice to have the falls and not to have to worry about anyone falling into a pond.