How to make sea waves ?

[winter twilight]

How to make big ,Roaring and huge see waves ?i have a
Rocky beach in my map .do i need to make or download a model or can do it with out it ?
thanks for your time and answer

 

[Uncle]

You'll need custom models for that.

 

[BradPittlord]

You could always try a dummy unit casting crushing wave over and over again or crushing wave special effect or a dummy unit being moved around with the waterfall model

Probably would look bad tho lol