Seattle
the pacific ocean
Hudson Bay. Manitoba is the Central province and they have an ocean port in Churchill. This port is closer to Europe than Montreal and is open most of the year without icebreaker support, which Canada does not usually to supply.
Atlantic Ocean
The South Harbor is right next to downtown Seattle. It really is pretty much in downtown Seattle.
You can connect to an open port, for instance, 80 TCP port is a standard port for web pages.
Seattle
not at the port!! but in the ocean!!
Tacoma
about 15 miles
127 miles
You have to have a program that is actually using this port for it to be "open." As long as the program is not blocked by Windows Firewall, the port will be open.