Originally Posted by YVR Cockroach

All the above suggested cruises are not doable w/o violating the PVSA so the cruise lines aren't even going to entertain the thought.

Those cruises cited above are round trip closed-loop and one must embark and disembark at the same port. As it is, if one misses getting on the ship at the originating U.S. port, one will not be permitted to board at any different U.S. port downstream, unless of course one intends to embark or disembark at the mandatory (due to PVSA) foreign port of call subject to cruise line permission. I suppose one could pay the $798 fine but the cruise lines don't like that.

The only way one can stay on the cruise ship is if the ship sails via a distant foreign port, which none in Mexico or Canada qualify.

You cannot piece cruises together either if on the same ship. Example, if you found a cruise on the SS X on cruise line A sailing Hawaii to Vancouver, and then SS X's next cruise is from Vancouver to San Francisco (or in reality, more likely Seattle). You will not be able to book Hawaii to Vancouver and Vancouver to San Francisco. And yes, they will find out even if you book through different travel agents).