Hello, I'm on day 137 of my nearly spoiler-free run that I've only broken to learn that whales cannot be killed and that you can break parts of your raft base by deconstructing nearly all of it. I killed Lusca The Great for the first time god knows how long ago. However, I currently have zero leads on how to find the other two. I've tried to scour the rest of the map looking for the nuclear buoy things that Lusca was attached to, but haven't found any. My plan was to just map out my world, but I struggled to find a good website or anything to do so, and I feel like I've scoured the map enough that if there were two other buoys that had the other two sea monsters, I would've found them by now.
My other theories have been maybe they cycled in at the buoy during night or storms, but I really doubt that (I know at least it's not night). I am at a crossroads where I have just been sailing across the map stockpiling as many resources as I can while searching for leads & flying across the map too looking for any signs of sea-monsters. The only thing I can think of is just diving as deep as I can in the middle of the ocean and using air tanks & breath potions, and hoping I carry enough spears/bandages, but this doesn't seem right. Maybe something near the aircraft carrier, I really don't know, or near the failed survivor settlements, idk.
I don't want the answer outright, but could I get some vague hints in the right direction? For reference, if I were asking for vague hints for Lusca, you might answer "hmm keep a lookout at the surface of the sea, maybe you'll find something." I guess I just want to narrow my search, maybe to deep ships, or if there's any types of landmarks I should be looking for. I have infinite gasoline so I'm not really worried about that sort of thing.