Last year, my wife and I went on a 5,025 Km Interrail adventure. We got the month-long unlimited pass and saw 10 Countries in 30 Days. That was a bit too intense. So this year we got the 15 travel days in 2 months package. We grabbed the 1st class tickets when they went on sale in December. Here's how our journey ended up: The trip included two ferries - one overnight - which had a small…