******this tour is SHARED with other customers****Boats leave at the scheduled times. LATE ARRIVALS WILL BE REQUIRED TO PURCHASE NEW TICKETS. WE DO NOT HOLD BOATS TO WAIT FOR LATE CUSTOMERS.You will receive a personal and detailed historical tour from our knowledgeable guides. You will be told about all the bridges and buildings you pass. Hearing about the famous colleges, their history, some funny anecdotes and all about our famous University Alumni. Our guides will be happy to answer your questions on the town, colleges and whatever else you are curious about. The tour covers the 1-mile stretch of the River Cam, known as The Backs. It will last approximately 45 mins.