The Rhine Falls are magnificent and well worth a visit; the optional boat tour for CHF 12 is also an exceptional value! We had enough time to view the Rhine Falls from both lower and upper vantage points, but we were a bit pressed for time at Laufen Castle, which was unfortunate. The medieval town of Stein am Rhein is also very beautiful, with quite unique painted facades and half-timbered houses; there is a free museum in town that thoroughly showcases the traditional lifestyle of the locals. Unfortunately, since it was Saturday, most of the shops in town were already closed when we arrived.
Our tour guide Matthew was fantastic. His explanations were very clear, providing detailed introductions to the human geography and historical background of both Zurich and the local area. He was humorous, and his English was very standard, clear, and easy to understand. The driver's skills were also excellent, making the entire trip very comfortable and smooth.