When I experienced Fathom, the brand still had a dedicated cruise ship, the Adonia. Now, the ship has left, and Fathom is no longer a traditional cruise line. Looking at its current website, it ...

When people book a cruise, they generally want a vacation: sleeping in, pool time, plentiful drinks, lavish dinners. Fathom, the one-ship Carnival Corp. experiment in “social-impact travel,” is ...