Originally Posted by
gglave
Yep - In north America I'd guess it's Washington State to Alaska, with Port Hardy, British Columbia, to Prince Rupert, BC a distant second (15 hours).
Actually the Alaska ferry Tustumena (aka the "Tusty") sails from Homer to Unalaska (aka Dutch Harbor) on the Aleutian chain, in 82.75 hours, around once a month. Fun ride, but not for landlubbers.