i did and exploration mission utilizing a small seaplane i made, it has a camera probe, now the cool thing about the modded camera and screens, they see under water, here is an example.

As you can clearly see the cameras allow the user to see under water, so i did an experiment ive been dreading, i hate the sea monster, it scares me, well the whispers do, it always sounds like they end in "see what happens" no matter what, ive always heard see what happens, that scares me, but i went out and did this to the Kraken, with a surprising result.

its a bit dim i know, but if you can see it, there is no change, this is about as far as it would let be go before the camera was destroyed, im not sure what happens to it, but i dont plan on finding out.

So, that is what is under the sea monster, either a consistent plane, or nothing, im not sure.

-Mech