User blog comment:Kaido King of the Beasts/Chapter 818: Stepping Stones to One Piece/@comment-24442815-20160303163252/@comment-4374114-20160303213049

The only thing that does bother me is since compasses don't work and, along with shown image, the coordinates don't mean they are connected to an island, how do you get to a specific location. Even with all four, unless all coordinates are islands, there is no way to find a location.