I'm keeping my boat at the same marina.
Just ask in marina for Gloria and Dragan. They run a family
business (chandlery, repairs
, gardiennage etc.) Both are of Serbian origin, and they are extremely helpful with arranging any things there. For some years of using the marina as a place for witerization I learned to arrange literally everything through Gloria and Dragan, as they are trustworthy and reliable - what is not always the case when dealing with Greek people
I will be not there in December, but I hope we can have a beer
or two together in the spring.