What is the difference between deep and shallow water ports?

[Mirex Jr.]

As title. Thank you for your help.

[Ink]

Greetings, Captain,

the difference is that deep water ports available to any ship in the game, shallow water ports in the same time allow only ships up to Niagara to reach the port (their draught allows only docking at shallow ports), the list of dw and sw ships can be seen here:
http://navalaction.wikia.com/wiki/Ships

[Mirex Jr.]

Yhank you very much