Wow, thank you Cyrius, that is some compliment!
The sea is a soft body with a turbulence field, and on top of that I put a variation of the "ocean wave" shader you find in the Alias | Wavefront web site. That shader is great, you can change parameters and get an endless number of variations: calm water, stormy water, sunny day, overcast day, shallow water, deep water, you name it.