
I've
I've found that using a simple glass glass node works. Also it would help to mix in a refraction node and set the IOR yo 1.333to 1.333, which is the IOR of water. If you want foam use a voronoi crackle texture node and invert the alpha so that the "crackles" give the reflection as white and it looks foamy. You will have to tweak the setting to get it looking the way you want it. The look of your water also depends on your lighting. Always Model, then Light, then create your materials and texture, and finally post processing.