Thanks to people from Thinkbox Software I had opportunity to use Frost to mesh my waterfall particles.
This is the final effect. Frost mesh almost 200 mil particles in 7 minutes (last frame).
Also, I add one of the first tests in this waterfall R&D... more stuff will come.
Big thanks goes to Barbara Witkowska (vimeo.com/48468458) who sculpted waterfall ground and modeled all the tree palms ...