The trip on the ferry to selbina is one of the rare times you fish near other people in Final Fantasy XI. It’s also attacked by pirates often, and has a couple of notorious monsters capable of killing even experienced 75s. They aren’t showing up this time, because you can tell by the center pirate in this picture wearing red.
Once this barge closes in they immediately summon undead to raid the deck, but most are too weak to give me any hassle. It does make fishing a lot less boring though.