https://www.youtube.com/watch?v=7ebA66c1Jdg

Margoria, The Next Black Desert Online Expansion

To prepare for this next update, BDO has been udpated with realistic and volumetric waves within the ocean. Additional content has been added to the seas, like flora, fauna, and shipwrecks. Starting today you will be able to enjoy these new features while awaiting the Margora expansion, expected to release this winter.

Detailed patch notes can be seen here:

http://forum.blackdesertonline.com/index.php?/topic/115518-patch-notes-october-12th/