I'm on the e-mailing list for the Interislander and they were reminding their subscription list of their Cruisey Pay option, so I thoughth about popping down south for New Year.
I checked to see if we could go south on Dec 27th (3 of us plus car) and come back on the 5th of Jan next year, and there are zero spaces available!
However for $100 less each way, the Bluebridge has places available... at 11.45 pm going south, and 2 am coming back!
Actually that was a few days ago, so they're probably gone already.