I really hope there is at least one massive sea monster out there somewhere in the depths.
Aww hell yeah. I can just imagine boating out in the sea when a huge storm starts to rage. You try to keep it under control, but after a while of struggling, it's ripped to pieces and Geralt falls in the water.
Then you start sinking in the murky water and you notice a MASSIVE silhouette swimming around, getting closer to you... God I love me some big massive (sea) monster stuff.