How to do water?
Jim-
If you wanna take the time, you can create a lake out of a grid of splines.
Then simply pull up various points here and there throughout your animation.
Also, try using Roughness with Specular. I'm not sure if changing the
roughness during an animation will create the 'sparkles' on the water, but it's
worth a try. A third alternative is to create a series of specular maps with
random dots on it.
Hope that helps ya! Let me know if it works out.
-Kevin