How to make a cascade?

[HeroLinik]

Kep told me that I should make a cascade in one of my water levels for my project. But the problem is - I have no clue as to how to do it.

How do you make a cascade in an underwater level?

[silent_]

"in a underwater level"

I think it would be better to make a cascade outside. Just make everything a moving layer that goes downward, but make the speed about 0.1, since it would be unfair otherwise. Also, since there's quite a bit of definitions for cascade, I'm referring to a brisk waterfall.

An underwater cascade would be something to consider, however. It would be complexer than an outside cascade.