Hi - Our group of 5 adults will be in St. Petersburg for 2 days as part of a Princess cruise in early September 2010. While we typically prefer independent travel on other trips we've taken, we have occasionally used private tour guides.
Through my research so far, there seem to be many options catering to cruise passengers - i.e. 2-day tour packages. I'm curious if any cruise passengers have had positive experiences splitting their time between organized tours and more independent self-tours. Other than the visa issue, are there significant downsides to NOT using a tour guide (e.g. travel/logistics, language, access to major points of interest)?
Any help would be appreciated.