Dom III sitll gets some parental attention

[Gandalf Parker]

Just brainfarting but...
if it allows units to enter water for a short time only; then it might provide abit more balance by allowing a way for many land nations to at least try to take the water province bordering their shores.
If (later) the difference between sea and deep sea was fixed, we might get some balanced water nations out of it.

(at a guess I think Kristoffer is playing water nations more than cave nations)