Liney, I know the sort of thing you mean, but the question will be whether any are available at Christmas. Normally, you get them from the hotels or car-hire/bike-hire firms. I think it may be a case of having a look round and see. There will be a couple of car hire places open in the port, such as Vanrell, who may have them. Hotels in the port likely to be open would be the Estrella de Mar and Coral de Mar. Again, they may have them, but I'm really not sure. On your other thread about restaurants, it's difficult to know for certain as this can change year by year, but I'll ask around for you.