Not all things are what they appear to be; this waterfall and rockscape is constructed of faux rocks formed from concrete.  Now you have the choice of natural stone or replicated boulders.  Special fiber optic lighting is installed to highlight the falls at night.  There is a high-powered pump to ensure the waterfall flows at a constant rate.  Water features like this are not only beautiful to look at and wonderful to listen to, but they are also a great compliment to a chemical free pool.