To the other post: My belief on Jinbei's exploration has just as much support as yours does about him having a vivre card to find Whitebeard and his crew. I dont remember seeing that anywhere so if you could give me a link that would be great i enjoy re-reading to find stuff i missed when i have the time. :)
besides, the fishman pirates sailed in paradise, not in new world, jinbe only went to new world once he was a shichibukai and to meet whitebeard. whitebeard pirates could even have given him a vivre card so he only had to go swimming to wherever they went. It isn't implied anywhere that jinbe has explored any new world island at all, I only can picture him knowing about some littles details about populated places where the whitebeards pirates were like wano country.
I was just stating a possibility.
the only known reason jinbe have ever had for going to new world was to meet whitebeard, that's a fact. Jinbe's exploration through the new world whould have ended at the moment he find whitebeard pirates, which could even have happened in the first or second island he reached. It isn't farfetched to say that they could ahve given him a vivre card so they could meet again.