Havana aft premium balcony rooms on Horizon~just for 2?

Are all of these rooms (extended aft Havana balcony) only for a maximum of 2 guests? I have been waiting to see if one does come available since as of now they are all sold out. Now looking further at the deck plan I don't see any rooms that are for more then 2. Am I missing something? Are all aft extended balcony rooms on this ship either for havana or family harbor? We are a family of 3 adults sailing and I would rather be higher up on the ship and not in the family harbor area.