One of the cruise lines (SilverSea?) opened service in the Arctic from the US/Canada east through to Alaska this year. It sold out. The travel agent that I work with--Cruise Specialists-- had early access. They also do trans Pacific and longer /world cruises.
Cruise Specialists are highly recommended--Kelli Surdell (email:
[email protected] )
http://www.cruisespecialists.com/our-experts.aspx