A: Animal lovers take note: there is a cruise that accepts your pets. Cunard Line’s Queen Mary 2 takes up to 12 dogs and cats on certain transatlantic crossings (from $300). Pets are housed in a special kennel area, which includes outdoor space, a full-time kennel master, and ample visiting hours. The main reasons other cruise lines don’t allow animals on board: hygiene—ships have strict sanitation codes—and port regulations. Each country has its own entry requirements for animals, so navigating multiple-country cruises would be a headache for ships and pet owners alike.