User blog comment:Ranger94/Why are the celestial dragons working (helping) Doflamingo./@comment-6920514-20130629213923/@comment-6920514-20130701031202

If it's not because of the crazy weather conditions on top of sailing through the seas ruled by the Yonko that is stopping anyone from reaching Raftel then I think it'd be poneglyph related. Like how they tell you where the ancient weapons are located. Perhaps you need directions from them to find Raftel too.