User blog comment:SirBoo/Jumbo Pearl Jam/@comment-2053489-20100709144925

Hmm, I have the same problem too, just can't get them...

There are 2 way's I know(read about it here in the wiki), but had no success with them

a) some event quest I forgot the name( two loyal ludroths in arena or something like that...) b)Gathering underwater in the Deserted Island and hope to get one...

The only way I know to get the 4* hunting fleet is to have it 3* and then send them out at stormy weather(the comment of the crew) then you will have small chance of getting 4* rewards(see wiki's fishery guide) although I never got a Jumbo pearl...