any one know how you get a harbor? Seems i can get one because A. i'm on the coast B. I have ship units in my recruit screen. Went out and traded for some wood... I want my ships

Is it just a matter of upgrading a province, i'm about to upgrade a province and i'll need ships at sometime, couldn't find anything in the manual.
Another one, why does Sonneneve have a harbor on a river, but can't build ships.Are ships even able to move on rivers. Can ships transport units?
How about a sticky for this thread for people to pose their game play questions.
Enjoy when you can, and endure when you must. ~Johann Wolfgang von Goethe
"Be Yourself; Everyone else is already taken" ~Oscar Wilde
*I'm in the Wargamer middle ground*
I don't buy all the wargames I want, I just buy more than I need.