Ghost Ship 7
No minimap in-game
As of the current patch, there is a glitch in Maple Story Global that is if someone dies in the "engine room", no one will be able to access the portal to it. This has been causing problems with people not being able to get to the boss. Nexon is aware of this problem and promise to fix it in the next patch or maintenance. Also, the portal requires you finish a quest, which is what it is supposed to do.