Tephra
4
Some of the Exiled Lands could be converted into sea. You would be limited on how far you could go because of the dungeon interiors located outside the current ghost wall, but they aren’t so restrictive that no expansion at all is possible.
I think this area could safely be made into sea without encroaching too close to any dungeon interiors:

I believe the Palace of the Witch Queen interior is to the south, so that might be less feasible, but I think the area north of the jungle would be possible.
I think that a reason for the water to exist aside from so you have space to sail in would need to exist, and having water access between the jungle and highlands would be pretty nice.
2 Likes