I would much rather have a helicopter than a cruise ship. A helicopter with a couple of high performance snow mobiles on the skids, so it would need to be a big helicopter. You can hire a bush pilot for relatively cheap up there in Alaska, then get some dirbikes or high performance snow mobiles wherever you choose to go.

So if you go on the cruise ship, make sure to take pictures of all the people with intestinal viruses and get good shots of the engine room catching on fire and make sure to take lots of long lenses so you can see to across all the water.

I've actually done a cruise up there, it is wicked. But it is also cool to go inland to remote places. I didnt have a bush pilot up there but I know some and they're crazy.

I would take my 5D3 with the 24-70 LII and be happy with it. Maybe I would prefer covert insertion into North Korea or something, take an extra 1600mm L lens or something to that effect. I would certainly need a sat phone with good data to get my images out fast in case a sniper shoots me or something.