Photo Walk tours combine a historic stroll around a Boston neighborhood with useful suggestions on how to get interesting shots of oft-photographed neighborhoods. Note that you're not going to get much advice on exposure, shutter speed and other camera settings; this is about finding interesting subjects and compositions. Even with those limits, though, I definitely found the tour worth the time and money. It was fun! And I liked the photographic results. I hope to go for the Back Bay tour sometime soon.