Request a copy of the cruise ship's map. Many cruise ships, such as Carnival Cruises, have a virtual map available on their website. This map will show you where each stateroom is located as well as what is near each room. For example, if you have trouble walking long distances, you will want to look for staterooms near the ship's elevators.
Review the amount of people you need the stateroom for. If you have two adults and two children, for example, you can rule out any single or double occupancy staterooms. If the children are older, you can choose a stateroom that has an adjourning room with connecting door.
Pick a stateroom based on the price you can afford. Generally, inside staterooms are cheaper because there is no window or porthole. Also, the lower levels of the cruise ship don't cost as much as the upper levels.
Select a balcony stateroom if you want more than just a view of the ocean from a porthole. Balcony staterooms aren't too much larger than a regular stateroom, but you can sit out on the balcony and enjoy the fresh air while taking a break from all of the activities on the cruise ship.
Take a look at all the advantages that come with booking a suite to see if it is worth spending the extra money. Most cruise ships offer expedited check-in service, nightly hors d'oeuvres, and a concierge service for guests who choose the luxurious suites. Suites also have the largest amount of space, whirl pool tubs and a balcony, most of the time.