There are 2 video tutorials which will explain the creation waterfall using Reaflow and Krakatoa in 3ds max. Total runtime of these video tutorials are more than 1:30 hrs. In the first tutorial artist will show you some basic concept of Realflow (interface, import geometry, emitters, initial state, etc....).
In second tutorial will show you some basic concept of Krakatoa for rendering simulation of waterfall. Also I show you some concept of mesh from Realflow and the classic workflow for simulation and rendering.
If you like to download the HD version of these tutorials for your future reference then all the registered members (free registration) of the CGArena forum can download this from here