you know, i have a few and don't recall where i got them. Here's some but I think these are all above water. http://www.pussreboots.pair.com/bryce/skies.html http://www.brycetech.com/tutor/bryce/underwater.html I did a google search and didn't see the skyz. Quite frankly, its easier to make them using fog/haze. There are some tuts available for that too.