During Laboon arc it was stated by Crocus that there was a final island whose location was revealed by the Log Poses, which the Straw Hats initially assumed to be Raftel until Zou arc where Inuarashi and Nekomamushi revealed how to go to Raftel but reassured Nami by telling her that the last island indicated by Log Poses was still a very important location and step before Raftel.
What is this last island ? And what the Straw Hats could possibly find here that is really important in the journey to conquer Grand Line and become the Pirate King ?
What is this last island ? And what the Straw Hats could possibly find here that is really important in the journey to conquer Grand Line and become the Pirate King ?