I am going on the Old World Prague & Blue Danube (Budapest to Prague) in May (May 13, 2013) with the post-trip to Warsaw and Krakow, and so I have been browsing through old posts and reviews of the trip, and I found your message. How was the trip? Any pointers? I particularly am interested in finding out about the optionals that you went on and liked/didn't like, and the reasons. Thanks for any input you can give me! Or anyone else who reads this post, same thing for input.