The most likely explanation that I’ve read is that they are military personnel, with no fishing skills, ordered to go fishing and not allowed to return until they catch something.
Watch out when the Fog starts drifting in.
People trying to escape North Korea?
Sad.
Poor, dumb troopers, with absolutely no knowledge either of the sea or of fishing, or, indeed, of small craft handling, sent out to catch fish.
There’s no food in North Korea, but the Madman-in-Charge spends everything on nukes and his personal creature comforts.
bttt