Hop on hop off bus tour. These are excellent value I expect that you have seen them in Cambridge. They are such a good way to discover your chosen destination. The driver/guides are a founts of knowledge along with plenty of anecdotes along the way. Chums went on a harbour cruise which they pronounced hilarious.
Plane Travel, 14 North Road, Whittlesford, Cambridge, CB22 4NZ
Phone: 01223 839757