the Princesdam has three single cabins. Two outside and one inside. I had one of the outside ones august 2007 on the Celtic Kingdom cruise. There was a door to the outside so the four unbalconied(word)? could go to the front of the ship.The outside cabins are on the the upper Promenade deck. this is a beautiful ship and less than 800 passengers. I believe it is the only HAL ship with single cabins.