Originally Posted by Pritha

"Gol D. Roger and his crew are the only known people to have reached the island. Roger offered Whitebeard the information on how to get to Raftel, but Whitebeard declined because of his own goals of achieving a "family" of crew members instead of reaching One Piece. This also indicates that getting to the island is not as simple as sailing to the end of the Grand Line" - one piece wiki .... maybe true