From ThePointsGuy.com….
Picking a cabin on a Carnival Cruise Line ship isn’t nearly as complicated as picking a cabin on, say, a Royal Caribbean or a Celebrity Cruises ship.
Unlike some of its biggest competitors, Carnival isn’t known for a huge range of cabin categories on its vessels.
The vast majority of the accommodations on Carnival ships fall into one of three broad buckets: Windowless “inside” cabins, oceanview cabins and balcony cabins.