That’s the beauty of river cruising. You can see a lot — in relatively little time. Sunday morning, for example, we visited charming Durnstein, Austria, where we pedaled bicycles, provided free of charge by AmaWaterways. We rode 12 kilometers to Krems and back. We enjoyed the exhilarating and beautiful ride through the Wachau Valley, with its miles of rolling vineyards and inspiring landscape.