I booked the English tour in advance since I don't speak Spanish (much as I would like to!). I showed up, the guide was late, but then once she and most of the folks got there, I was told by the guide that I am the only English speaker in the group. She said that if I really wanted to she can take me with her, but it'll be quite the inconvenience explaining everything twice, and that it'll be much easier if I go to the Cathedral and try to find another tour.
This was quite awkward, and it didn't seem like much of a choice -- I either stick around and be the one annoying English speaker for the group, or I leave for everyone's sake and then have my morning activity be shot. I left to look for another group :( I can't comment on the quality of the tour, but the organization and how logistics are handled was poor.
