Exception: Royal Caribbean and other cruise lines will also use sub categories to distinquish between how many occupants the cabin will sleep. Therefore a cabin that can sleep up to 4 people will be a different sub category from a cabin that sleeps only 2 people.
Balcony cabins: These cabins are better, and more expensive, than oceanview cabins because they typically have full glass sliding doors that lead to a balcony. The balcony allows fresh air and light into the cabin and also may have additional chairs or loungers. Balconies tend to be separated by dividers which give some sense of privacy, but be aware that most balconies are not fully private and can be viewed from above or by the cabin next to you. Balconies on new Norwegian Cruise Line ships and Princess Cruise Line ships tend to be smaller and more narrow than balconies on other ships. We will list balcony size in the cabin description. Carnival offers what is called a "Cove Balcony" on some of their ships. These balconies are very popular because they sit lower on the ship (closer to the water line). Expect to pay $200 to $400 a night for an balcony cabin.
Other pitfalls include service areas adjacent to or above your stateroom; show lounges or bars adjacent to, above or below your stateroom; and self-service launderettes across from your cabin. Other cabins that can be problematic are those that are situated low and at the back (because of their proximity to engine noise, vibration and anchor) or low and forward (because of bow thrusters).
If you tend to get seasick, cabin location is really important. It is a question of engineering, really. The lower and more central you are in a ship, the less roll and sway you will feel. Even if you choose a balconied stateroom, choose the lowest level and the most midship one you can find. The higher decks and cabins at the very front (forward) or back (aft) of the ship will rock and roll the most.