This review is for the welcome center’s walking tour, which I cannot recommend. Our guide was lovely, clearly very knowledgable, and did the best she could given the circumstances, but the group size was too large, the city much too crowded and noisy, and the microphone/headset system totally inadequate. There is too much ambient noise and the guide’s microphone crackled the whole time, making it impossible to hear what she was saying. We abandoned the headsets pretty quickly and just walked around with the group so we’d know which spots to revisit later on our own. We went on a Saturday, so perhaps the tour would have been better on a less busy weekday.