[header] How to build a natural looking waterfall with a filtrific vanishing water system [title] Determine the path of the water feature. [step] When mapping out the path of your water feature, consider bends in the stream and waterfall drops. A natural looking stream channel should appear " ageless, " as if it has always been there. 
To best accomplish this, choose a location with a slope. If you don't have much of a slope to work with, as an alternative you can choose to create water flowing from a boulder or rock grouping.