No navies, so what use are harbours?

[Castellon]

Civilian Harbour = Transport cost * .75, Tech spread +2%
Naval Harbour = Transport Cost * .65, Tech spread +1%
Grand Shipyard = Transport Cost * .50, Tech Speed +1%, +1 Prestige.

 

[Castellon]

Doesnt it give you a financial boost as well? I thought i remember seeing that in the tooltip???

Well I took those items right from the game files, no mention of money.
But as lenny says, buildings and techs can effect what events you get.