User blog comment:Ichigostop/Isn't Shanks supposed to already know where One Piece is and how to get to Raftel?/@comment-3119203-20110131134659

I think that he knows where it is, but the other yonkou are keeping him from progressing further into the new world. I also think that he may be like whitebeard, as Galcion mentioned, and just wants to have agood time with his crew