No visit would be complete to this fabulous city without taking in one of the many Cambridge tours. There are plenty to choose from so it really is a case of deciding how much time you've got and prioritizing your needs.
There are a number of companies offering professional guided tours of the city. These tours can be booked in advance and the guide (s) will meet with your party and take you on what is usually a full day tour of all the historical sites, including the University colleges.
If you are on restricted time, or do not like the thought of being ushered around from place to place you might want to check out the increasingly popular audio tours that are available. These come in varying formats but the most popular is simply a CD that you put into your portable player and follow the tour map, tuning in to the relevant track at the appropriate time. There are 3 or 4 companies that now offer these audio tours and it means that you can enjoy the sites and the history at your own pace, rather than that of a big group.
For the more dading tourist looking for an alternative Cambridge Tours you could try the infamous Cambridge Ghost Tour. During the tour you will be taken to the areas of Cambridge where ghostly happenings have been reported and given an insight into the City's macabre past. It's not for the faint hearted but is very interesting and immense fun.
Follow the link to find tour providers of tours in the area => http://www.cambridgeshiretouristguide.com/Display_Results.asp?cboService=150&CityID=430