Blender user Jesse Miettinen showcases the power of the Blender modifier stack by building this very realistic fully procedural ocean rig seen below.
He showcases its versatility in the following tweet, but also how light it is with him mentioning a 15 second bake time for the ocean modifier.
Jesse also gives a sneak peek at the modifier stack behind his wizardry
The Ocean modifier has seen a resurgence in popularity lately thanks to its recent powerup, with it receiving the ability to generate foam and spray maps. This has also paved the way for more stylized renditions of Oceans, like these gorgeous examples by James Hedberg and Dyzinliz: