If you ever go on a cruise, take the kitchen tour. It’s astonishing.
Going on a cruise is like the least ecologically fucked-up way for anyone who lives in the lower 48 to see Glacier Bay. Cruise ships have tiny per-capita carbon footprints.
The first cruise I went on, we dined every night with a woman who started out working on cruise ships and, having moved on to other challenging work (she worked in oil fields in Alberta) took cruises every time she vacationed. She had a pretty solid line on cruising as a socially-responsible use of resources, and was of the opinion that the parts of the industry she’d worked in (Royal Caribbean, mostly) were non-terrible.