[cleveland]

Rabe,

Caves are just like normal provinces except they have different populations & magic sites available only to them. They generally give you troops with darkvision.

No, you don't need darkvision to fight normally in a cave. I believe it's considered a bug, though. You need darkvision to fight normally in a Cave Fortress.

No, there are no non-obvious connections on this map. I had made a map and set each corner as an interconnected cave*; however, players preferred this map instead. This is just a normal map - the corners are highly defensible.

Cheers,
cleveland

*That map is called "Uncomfortable" and is available under the Maps/Mods subforum, if you're interested. It's also available on Llamaserver's map browser.