UK and Med Cruise - Day 10 - 14 September - Corfu

Only a half day in Corfu today.  Paul and I decided not to do a tour but to just get a shuttle and then go and look at the "Old Fortress":

The obligatory photo of Paul with gun:

And this time, an explanation of what the gun actually is:

There is by the way a New Fortress quite close by, but it doesn't really look all that much newer:

I wasn't completely comfortable about where we were at the start of our walk; our SIM cards weren't supposed to work in Greece and the maps they give you on the cruise ship are deliberately vague - they don't want you to go out on your own, they want you to pay to go on their excursions!  There is no real pattern to the streets nearby- lots of old alleyways now full of stores (and tourists!).  And, although there are a fair few tourist map signs around the area we were walking in, they were mostly only in Greek.
However, I got a surprise.  At one point we sat down at a bistro for a cold drink, and while trying to connect to their WiFi I discovered that I do have data access via the SIM card.  I have given up trying to understand; Greece was not on the list of eligible countries when we left England, but it seems to be there now.  Anyway, it's pre-paid data and they don't have our credit card details, so I'm going to keep using it until it runs out.
We're back in Corfu again next week, this time for a whole day. In the meantime, we'll decide whether to book a shore excursion or maybe we'll just catch a HOHO bus and let them show us some more sights.  Hopefully there might be not quite as many cruise ship passengers in the streets; today there were four cruise ships here - this shows our ship, the Costa Mediterranea (with the yellow funnel), and the Mein Schiff2 (with the dark hull); the Queen Victoria arrived a little later:

Formal night again tonight.  This is a bit aggravating, 2 formal nights on a 7 day cruise is one more than I'd expect and two more than I want.  However, on the bright side, our dining room is almost completely un-populated most nights and they don't seem to be making the slightest attempt to enforce formal wear - one of our table-mates showed up in a tshirt on the first formal night.