Where is the Mountain of the Father?
I couldn't find any online resources that say specifically where this is. So, I'm going to ask here: Where is the Mountain of the Father? The place where you obtain the summon Bahamut?
Solution 1:
In the Dark Gate, the room that links you to the 4 voids, a portal opens up at the north tip after you have entered Nil for the first time. This will take you there, and there you fight Bahamut.