Probably you didn't know that Blender has an ocean simulator... well, then you came to the right place! :D Ocean simulation happens from a modifier. In the first part, we'll see how to make the simulation itself, explaining the different methods and parameters available into the ocean modifier. In the second part we'll add shaders, foam, sky, and get the scene ready to composite the final render result.
I hope you enjoy these videos and create a nice looking sea on your own!