The mega-mondo blatantly bloated Oasis of the Seas carries about 7000 passengers. You couldn’t get me on the thing, but carry-on luggage only might be a good idea if you choose to cruise:
When I arrived at the ship, it took four hours for my luggage to reach my cabin. With the petulance of a man who had been up almost 20 hours, had no change of clothes, needed a shower and in five minutes’ time was expected for dinner, I called a man in Guest Relations. “It is hard to find one piece of luggage among 15,000,” he said unhelpfully.
Did I detect a note of pride in the way he said 15,000? Undoubtedly, it is the biggest collection of suitcases ever to put to sea. I knew that ought to have made me feel better. - telegraph.co.uk