The cruise was fantastic for the first 5 days, then the low water hit. Although, AMA says they are not affected by this, that is not the truth. We had to dock and be bussed to Regensburg and Nuremburg. The bus rides were 3 to 5 hours long. Very disappointing but not AMA's fault. Although, Viking, who is very upfront about their itinerary changes, did a boat swap during this period, which would have been preferable to being bussed. The transfer to Prague was also changed. Instead of visiting a quaint small town as planned we drove for 7 hours wasting 2 hours in a forgettable Pilzen with nothing to see. Even the tour guide couldn't think of anything to say. There was a brewery (not enough time to visit) and a church. Finding a place to eat lunch was a challenge.
The cruise, itself was great. The ship was beautiful and the crew terrific! I would take another trip with AMA, I just wish they were more forthcoming with itinerary changes. We lost two days of cruising, which is the reason we took this trip---not the destinations. Bussing may be necessary but a big disappointment to the guests.
We did not take an excursion.