I am following Homer's 70 years ago today in WWII threads. Not that long ago a typhoon took off the bow of a heavy cruiser, USS Pittsburgh. There is a lot of power in that water.
I recall an account of a plane that had to ditch (or maybe it was a vessel that sank, but anyway) during WWII; the survivors were in liferafts, and wearing “Mae Wests”, and that was fine at first, but they were waylaid by a large octopus (or more than one) which pulled men out of the raft as the rest were screaming in terror. That’s one of those kinds of stories that gets the “there’s no evidence it happened” denials. :’)