A diverse choice of tours and personalised routes, add in some extremely informative and downright friendly guides makes going on a Peter's Walking Tours one of the best choices you can make while visiting St. Petersburg. Guides are extremely informative about architecture and history, as well as modern Russian society and with their "alternative" routes, they can show you how to escape the tourist traps and reveal the real city. By the end of your tour you feel inspired and educated. They also have bike tours. For more information and full timetable check out the website.