I always remember seeing this big thread on 4chan of some guy claiming to have top secret knowledge, saying that there are several huge, seemingly mobile, automated bases in the oceans that produce these drones/UFOs. And any time the authorities try to observe more closely they get boliterated. Of course there's been other evidence and accounts from pilots etc that UFO's have been observed flying straight into the ocean with no issues
ofc 4chan is highly trustworthy when it comes to this stuff
Edit: I remembered I saved the whole thing, but it's close to like 50 images and jumbled up