We did the precruise extension in Prague. Prague was probably my favorite place to see on this vacation. We stayed at the Imperial Art Deco which was a lovely hotel within easy walking distance to old town. The concierge was very helpful in finding places to have dinner. Our tour guide was Jana who was great.
One night we went to a restaurant called Ceruna Tabulka which was recommended by the concierge. It was a short walk from the Art Deco and was very quaint and charming. The food was great.
The next night we went to the magic black night theatre which was a fun cheap evening entertainment. Not what I expected as a great deal of vaudeville comedy was included. The black light segments were very nice. I don't know if I would go again but it was an experience.