Not a must do tour. The city tour was boring. The Lindt and Spruengli Chocolate Factory was nothing but a store - no one even told us a story about where the chocoate is actually made, etc. Nor was there any small restaurant where I expected to be able to sit down and eat some sweat something as per the tour description. We particularly chose this tour because the tour description did not mention a boat ride . . . but we found ourselves walking through a maze of bugs to get to on a boat nevertheless. The tour actually ended up somewhere other than where it began - not stated in the tour description - but our guide helped us get back to our hotel area.