The ferry from Italy to Greece seemed new and clean. Like a mini cruise ship, there are restaurants, cabins, etc. Now most people buy cabins so they have a bed to sleep in for a 15.5h trip, but I tried out the “Deck” method. I found a plug in the wall, a chair, and a table, so as far as I am concerned that was good enough for me. However, sleeping wasn’t very easy. All the lights were turned on all night long, movies are playing all night and they can get quite loud, and there are no pillows or blankets. So I tried to sleep on the floor and maybe got three hours in before I started getting too cold.
The ferry arrived right on time, it was raining when I got to Greece though. The train station was nearby, so I went there and had a cheeseburger while I waited. In the afternoon took the final train (plus a transfer in the middle) to Athens. Then relaxed at the hostel the rest of the day.