Meant to say "completely unexplorable"
By "completely unexplorable", you mean in-game, or through RM2K?
Because if it's the latter, it's already done, and if you can't explore in-game because of limitations (tiles where you can't walk), then you can't help it.
What are the bigger maps? Probably the ones you've said. I personally don't know.
Which ones I felt were the largest for me? The docks, and the hell maze.
>which maps felt the largest for you?
Defo the Infinite Wilderness
>and which maps felt the largest for you?
Infinite Wilderness and the hell maze.