It starts with a three tiered waterfall on an upper pond that runs down a rivlet and falls into the main pond.  The main pond has an overflow bog-pond.  Then there are the other two ponds in the lower yard that are joined by a rivlet and fall into a small rock lined pool that falls into the lowest pond. 
Now that we have 2 1/2 acres of wooded land with year round streams Nature is the element of design
and I am making use of mosses and ferns and such to sculpt the property into a natural park.