This is really just an excuse to use this pic but it isn't entirely gratuitous. This is one of the displays from the Castle Cornet History Museum with some examples of the period pottery used around the 18th-19th centuries.
What's interesting (well to me anyway) is that the French contributions are the cooking pots and the serving dishes whilst the English provided the beer mugs and chamber pots.
Not being a boatie I don't know what the system is regarding "Customs" (Duanes) procedures elsewhere in the world but here for visiting sailors it seems to be just a matter of filling in the forms and putting them in this box.
I would assume there are spot checks on arriving craft but otherwise there didn't seem to be much oficialdom around the harbour and marina. In fact there's probably more stringent checks on people arriving in the UK from Guernsey as the Bailwick is not part of the EU.